  TkDesk User's Guide
  Christian Bolik, Christian.Bolik@mainz.netsurf.de
  Version 1.1, 2 September 1998

  TkDesk is a graphical, highly configurable and powerful desktop man-
  ager for UNIX and the X Window System.  This document is meant to be a
  comprehensive guide to the functions, services and configuration pos-
  sibilities offered by TkDesk.  Please also take a look at the CHANGES
  file for latest news.  A list of answers to frequently asked questions
  is also included.  The "official unofficial" TkDesk homepage on the
  Web is at <http://people.mainz.netsurf.de/~bolik/tkdesk/>.  There is
  also a mailing list dedicated to TkDesk available at major-
  domo@shaknet.clark.net.  To join this list simply send an email with
  an empty subject line and the body "subscribe tkdesk".
  ______________________________________________________________________


  1.  Introduction

  TkDesk is a graphical desktop manager for UNIX (with a slight emphasis
  on Linux, but it also runs just as well on AIX, Solaris, HP-UX, SGI
  Irix and other UNIX flavors) and the X Window System.   It offers a
  very complete set of file operations and services, plus gives the user
  the ability to configure most aspects of TkDesk in a very powerful
  way.  The reason for this is the use of the Tcl scripting language as
  the configuration and (for the greatest part of TkDesk) implementation
  language.  This makes TkDesk not just configurable but truly
  programmable.  TkDesk has been influenced by various other systems and
  file managers: NeXT, for laying out the file browser windows, Apple
  Finder, for the idea of file annotations and, (shock horror), Windows
  95, for some other (of course minor and unimportant) inspirations.

  This is a brief overview of the most prominent features of TkDesk:

  o  Arbitrary number of automatically refreshed file browsers and file
     list windows,

  o  Configurable file-specific popup-menus,

  o  Drag and drop,

  o  Files and directories may also be dropped onto the root window,
     a.k.a. desktop,

  o  Configurable application bar, with several displays and cascaded
     popup menus for each button, files can also be dropped here,

  o  History of visited directories, opened files, executed commands,
     and others, which is automatically saved to disk,

  o  Find files through their annotation, name, contents, size, age, or
     other criteria,

  o  A trash can for safe deletion of files and directories,

  o  Calculation of disk usage for directory hierarchies,

  o  All file operations (find, copy, disk usage, etc.) are carried out
     in the background,

  o  Traversal of directory hierarchies through recursive cascaded
     menus,

  o  Bookmarks, create menu entries for often used files/directories,

  o  Comprehensive hypertextish online help,

  o  Built-in multi-buffer and undo-capable editor,

  o  Remote control of XEmacs,

  o  Close coupling with Netscape Navigator for displaying HTML files or
     selected URLs,

  o  Sound support,

  o  Powerful on-the-fly configuration of nearly all aspect of TkDesk
     using Tcl/Tk, this also allows the Tcl-literate to extend TkDesk in
     arbitrary ways,

  o  Free of charge! But see the file COPYING, or menu entry
     Help/License for information on usage and redistribution of TkDesk.

  1.1.  Acknowledgments

  TkDesk uses a number of other freely available packages without which
  TkDesk would not have been possible.  I'd like to say many thanks to
  the following people:

  o  Chris Sterritt for setting up and managing the TkDesk mailing list
     (at the old location majordomo@mrj.com, this one's disabled since a
     couple of weeks),

  o  Alan V. Shackelford for seamlessly taking over the list to his
     machine and responsibility (the list is now at
     majordomo@shaknet.clark.net),

  o  Ken Hornstein for his wonderful netscape-remote package,

  o  Ioi Kim Lan for making an XPM image reader for Tk available,

  o  George Howlett for his great BLT, of which parts are used by
     TkDesk,

  o  Michael McLennan for his massively useful [incr tcl],

  o  John Ousterhout for Tcl/Tk, which is definitely the best thing
     since sliced bread,

  o  Greg Hankins and Matt Welsh for putting together the most wonderful
     linuxdoc-sgml package,

  o  and of course, Linus Torvalds whose Linux kind of changed my life,
     really!

  And a very big thank you to the growing TkDesk user community, which
  provides me with a constant flow of bug reports (getting less now
  :-)), suggestions for enhancements of TkDesk, and lots of motivation
  and encouragement.

  Special thanks to Chuck Robey for revising a previous version of this
  guide.

  1.2.  Using TkDesk's Help System

  If you check menu entry Options/Use Netscape for Help, TkDesk will use
  that for displaying this User's Guide on-line.  Otherwise, to reduce
  overhead, TkDesk uses its own help system.  It features hypertext
  links, context sensitivity (which is not yet fully utilised by TkDesk)
  and full text search.

  The help window consists of four areas:

  1. A listbox listing all the section headings.  A section can be
     selected by pressing the left mouse button,

  2. the text display, which contains the actual help text,

  3. a text entry field in which a regular expression may be entered
     (such as [Ff]eatures).  After hitting Return, the whole help text
     is searched for this expression.  Pressing Return again continues
     the search,

  4. three buttons: "Print" prints the complete help volume, "Back"
     jumps back after a hypertext link has been followed (see next
     paragraph), and "Close" to close the help window.

  Text that is displayed blue in the help window is a hypertext link.
  When the left mouse button is clicked over such a link the display
  will automatically change to the referenced section.  You can jump
  back by pressing the "Back" button described above.

  The following keys are bound when the mouse pointer is inside the help
  window:

     Tab
        Moves to the next section.

     Shift-Tab
        Moves to the previous section.

     Control-Tab
        Moves to the first section.

     Control-Shift-Tab
        Moves to the last section.

     Up, Down
        Scrolls one line up/down.

     Page up, Page down
        Scrolls one page up/down.

     Control-Home
        Jumps to start of help text.

     Control-End
        Jumps to end of help text.

     Meta/Alt-b
        Equivalent to pressing the "Back" button.

     Meta/Alt-c, Escape
        Equivalent to pressing the "Close" button.

  1.3.  Command Line Options

  Usually TkDesk is started simply by executing the command "tkdesk"
  from the shell prompt or your X initialisation file.  However, you may
  specify the following options to this command:

     -configdir dir
        Reads the configuration from directory dir instead of ~/.tkdesk.

     -default
        Reads the default configuration of TkDesk instead of the user's
        one in ~/.tkdesk.

     -iconic
        Iconifies all file browser and file list windows created by
        TkDesk during start-up.

     -layout file
        Reads the window layout information from file file instead of
        the default ~/.tkdesk/_layout.

     -startdir dir
        If this option is given, the first file browser will open with
        directory dir.

     -twm
        Don't use icon windows when file browser or list windows are
        iconified.  Some window managers liek twm cannot handle these
        properly.

  For example, the command "tkdesk -twm -iconic" tells Tkdesk to not use
  icon windows and start with all windows iconified.

  2.  The File Browser Window

  The file browser window is the largest window when TkDesk is started
  for the first time.  It contains a menu bar, a configurable button bar
  (for fast access to the most often used file operations and other
  functions), an entry field (displaying the current path), a horizontal
  scrollbar, a certain number of file listboxes (three by default), and
  a status and information bar.

  2.1.  The Menu Bar

  The following sections describe the entries of the individual menus of
  the file browser windows.

  2.1.1.  TkDesk Menu

  The "TkDesk" menu contains the following entries:

     New Browser...
        Asks for a directory for which to open a new file browser
        window.  If the directory is the empty string, the operation is
        cancelled.  By default the checkbox "In Browser" is checked, but
        if you uncheck it a file list window will be opened instead.
        The button to the right of the text entry field gives access to
        a menu containing previously visited directories.

     Clone Window
        Creates a new file browser window with the same directory as the
        current one (that is, the directory of the file browser from
        which this menu entry was invoked).

     Display AppBar/Hide AppBar
        Opens the application bar if it had been closed before, or hides
        (closes) it otherwise.  This menu entry's label changes based on
        whether the AppBar is currently displayed or not.

     Configuration
        This is a submenu from which individual or all configuration
        files of TkDesk can be opened to modify them.

     Auto Save
        Here you can select which parts of TkDesk are automatically
        saved periodically and when TkDesk exits.

     Save All Now
        Saves all parts of TkDesk's configuration no matter what the
        settings in the previous submenu.

     Close Window
        Closes the file browser window.

     Quit
        Quits TkDesk.

  2.1.2.  File Menu

  This menu provides all the usual file operations plus entries for
  finding files.  The contained menu entries are:

     Information
        Opens a file information window for each currently selected
        file.  This window, which can also be used to add annotations to
        files, is described in section ``File Information''.

     New File...
        Asks for the name of a file which will be created in the current
        directory of the file browser or list.  If "Open in Editor" is
        checked the new file will automatically be opened in the
        configured editor.

     New Directory...
        Asks for the name of a directory which will be created in the
        current directory of the file browser or list.  If "Open after
        Creation" is checked the current window will switch to the new
        directory after it is created.

     Open
        Opens the selected files using their default action, which
        corresponds to the first action defined in their popup menus as
        configured in the "Popups" configuration file.

     Print...
        Asks for a command to print the currently selected files.  The
        names of the selected files will be appended to the command.
        The default command can be defined in the configuration file
        "System".

     Copy, Move, Link...
        Opens a dialog box for copying, moving, linking, symbolic
        linking etc. of files.  This dialog window is described in more
        detail in section ``Copying, Moving and Deleting Files''.

     Rename...
        For each selected file, TkDesk asks for a new name.  Before
        actually renaming TkDesk checks for an existing file with the
        same name.

     Delete...
        Opens a dialog to delete files.  The section ``Copying, Moving
        and Deleting Files'' gives more details.

     Find Files...
        Opens a dialog window which can be used to search for files,
        using a variety of characteristics.  This dialog is described in
        more detail in section ``Finding Files''.

     Find Annotation...
        Lets you search for files with a certain annotation.  More
        details in section ``Finding Files''.

     Copy To X Selection
        Copies the complete names of all currently selected files (i.e.
        including their paths) to the X clipboard.  They can then be
        pasted into any other X application using the middle mouse
        button.

     Copy Names Only
        Same as previous one, but copies only the files' names (i.e. not
        their paths.)

     History
        Displays a submenu containing recently opened files.

     Close Window
        Closes the window.
  2.1.3.  Directory Menu

  The main purpose of this menu is to select directories which are to be
  opened.  It also manages TkDesk's trash can.  The menu contains the
  following entries:

     Open...
        Asks for a directory.  A new file list or file browser window
        will be created, baesed on the setting of the "In Browser"
        checkbutton.

     New...
        Asks for the name of a directory which will be created in the
        current directory of the file browser or list.

     Home Directory
        Changes the directory of the window from which this entry is
        invoked to the user's home directory.

     A number of path entries
        These can be configured in the configuration file Directories.
        See section ``Configuration of TkDesk'' for details on how to do
        this.   If one of these menu entries is invoked, the path of the
        file browser will change to that directory.   If such an entry
        is invoked while at the same time pressing the "Control" key, a
        new file list window will be created (if the option "Always In
        Browser" is selected a file browser window will be created),
        displaying the contents of the selected directory.  This feature
        applies to all menus that contain directory names!

     Trees
        Contains two cascaded submenus: "Home" and "Root".  The contents
        of these submenus is dynamically generated and corresponds to
        the directory hierarchy rooted either at the user's home
        directory or at "/".  Selecting an entry from these submenus
        changes the directory of the window to the selected directory.
        Pressing Control at the same time opens a new window with this
        directory.

     Open Trash Can
        Opens a file list window displaying the contents of the trash
        can.  When this window is iconified and TkDesk uses icon windows
        the icon can be used as a Mac-like trash can.

     Empty Trash Can
        Empties the trash can after confirmation from the user.  This
        erases the files contained in the trash can for good!

     History
        Displays a submenu containing recently opened directories.

  2.1.4.  Commands Menu

  This menu provides entries to execute commands either once or
  periodically, edit files, and provides some very basic form of "job
  control".  Its entries are:

     Execute...
        Asks for a command to execute.  The button to the right of the
        command entry contains a history of previously executed
        commands.  Selecting one of these copies its name to the entry
        widget.  Checking the "View Output" button will open an editor
        window after the command completed displaying its output (stdout
        and stderr).

     Execute as root...
        The same as the previous entry but TkDesk will ask you for the
        root password before executing the command.  The command will
        then run under root permission.

     Periodic Execution...
        Opens a window which can be used to execute a command and watch
        its output periodically.  If the "Don't execute" checkbutton is
        selected, the execution is paused.

     Job Control
        Opens a window which allows to stop, terminate, kill etc.
        processes which have been started by TkDesk.

     Edit File...
        Asks for the name of a file to edit, and opens it in the editor
        you selected in the "System" configuration file (defaults to the
        built-in editor).  The "Browse..." button opens a file selector
        from which a file may be selected.

     New File
        Opens a new blank editor window.

     Edit Selected
        Opens all currently selected files in one new editor window.

     Buffers
        Displays a submenu of all current editor buffers (both files and
        command output).

     A number of custom command entries
        These can be defined in the configuration file Commands.  See
        section ``Configuration of TkDesk'' for details on how to do
        this.  If one of these menu entries is invoked, the
        corresponding command will be executed.

     History
        Displays a submenu containing commands recently executed.

  2.1.5.  Bookmarks Menu

  This menu lets you create bookmarks for often used files and
  directories.  To do this, select at least one file/directory and
  invoke the "Add Bookmark" menu entry.  The name(s) of the selected
  files and directories will now appear alphabetically sorted in the
  "Bookmarks" menu.  You can remove any bookmark from the menu by
  selecting its corresponding entry from the "Remove Bookmark" submenu.

  The bookmarks you add will be automatically saved, if the "Bookmarks"
  entry of the "Auto Save" submenu contained in the "TkDesk" menu is
  selected (which is the default).

  2.1.6.  Options Menu

  The Options menu lets you configure many aspects of TkDesk "on the
  fly".  The entries are:

     Long Listing
        Select this to let the details of all files and directories be
        displayed in the file listboxes.  This slightly decreases
        performance and for that reason is switched off by default.

     Show All Files
        Whether to show files in the file lists whose name start with
        ".".

     Add Icons
        If selected, small icons will be displayed to the left of the
        file names in the file listboxes.  Turn this off for faster
        scrolling.

     Folders On Top
        If selected (default) folders will always appear on top of the
        file lists.

     Append Type Char
        Whether to append a file-type specific character to the file
        names.  This is mainly intended for monochrome displays and is
        then automatically selected.

     Single Click (Dirs)
        Lets you open directories with a single click of the left mouse
        button.  Individual directories can still be selected by
        pressing Control at the same time.

     Always In Browser
        If this option is selected, the "In Browser" checkbutton of the
        "Open Directory" dialog will always be selected. Control-
        Doubleclick on a directory will open a file browser instead of a
        file list window.

     Status in List Windows
        Whether the singly columned file list windows should have a
        status bar as well.

     Sort by ...
        Sort all file listboxes by one of these criteria: Name, Name
        (fold, meaning that upper and lower case characters will be
        "folded", i.e. disregard case when sorting), Size, Date,
        Extension, or Don't Sort to display directory entries as they
        are read from disk.

     Strip <your home directory>
        If this is selected, and the current path of the browser is
        somewhere under your home directory, the leftmost file listbox
        will contain your home directory rather than the root directory.
        This speeds up the display of directory hierarchies under your
        home directory.

     Overwrite Always
        If this option is selected, TkDesk won't ask if the destination
        file already exists when copying or moving files.

     Really Delete
        Relates to the deletion of files. If this option is selected,
        the "Delete Files" dialog box will always have the "Delete
        permanently" checkbutton selected by default.

     Quick Drag'n'Drop
        Normally when you drop files onto a file list, the copy dialog
        appears. If this option is selected, dropped files will be moved
        to the destination directory without further questions. If
        Control is pressed during dropping, the files will be copied. If
        the drop target is the trash can, TkDesk will ask if the files
        are to be deleted "really".

     Sort History
        This option determines whether the history menus are to be
        sorted alphabetically or not.

     TkDesk Server
        Start or stop the built-in server to remote execute TkDesk
        commands.  See also section ``Using the TkDesk Server''.

     Dialogs at Pointer
        If selected, TkDesk will always try to place new windows right
        under the mouse pointer.

     Autoraise AppBar
        Whether to raise the AppBar above any obscuring window when it
        is entered by the mouse pointer.

     Use Sound
        If you have sound working with TkDesk on your machine, you can
        temporarily disable sound by selecting this option. Handy when
        playing Audio CDROMs, for instance.

     Number Of Listboxes
        This relates to the number of listboxes in the file browser
        window. Between 1 and 6 can be displayed, though 18 would
        theoratically not be a problem.

     Balloon Help
        Whether to display a small window at the mouse pointer if it is
        placed over part of TkDesk, e.g. an AppBar button.

     Use Netscape for Help
        Whether to use Netscape rather than the built-in help viewer for
        displaying TkDesk online help.

  The settings of these options are by default automatically saved to
  ~/.tkdesk/_options.  This can be disabled by deselecting the "Options"
  entry of the "TkDesk/Auto Save" submenu.

  2.1.7.  Help Menu

  This menu tries to give you some help with using TkDesk.  It also
  contains entries for displaying the list of FAQs, recently made
  changes to TkDesk, and the license for using and distributing TkDesk:

     User's Guide
        Displays the TkDesk User's Guide either in the built-in help
        viewer or using Netscape (see previous section).

     Manual Page...
        Asks for a command for which to display the system's manual page
        in an editor window.

     Getting Started
        Displays the "Getting Started" guide.

     TkDesk FAQ
        Jumps directly to the FAQ section of the TkDesk help volume.

     Changes
        Displays recent changes to TkDesk.  Make sure you invoke this
        entry after upgrading to a newer version of TkDesk.

     License
        Restates that TkDesk is distributed under the GNU Public License
        (GPL).

     About TkDesk...
        Some info about TkDesk (version, author etc.), plus a link to
        the TkDesk web page.

  2.2.  The Button Bar

  The button bar that's located right underneath the menu bar allows for
  fast access to any of the commands of TkDesk.  It's also possible to
  configure each button individually to run customized Tcl scripts, that
  e.g. work on the currently selected files.  By default, the buttons in
  the button bar provide access to the more often used functions of
  TkDesk (copy, create, delete etc.).  When you place the mouse button
  over any of these buttons, a small help window will appear telling you
  what this button does (provided the "Balloon Help" option is
  activated).

  The contents of this button bar can be defined via the configuration
  file ButtonBar. See section ``Configuration of TkDesk'' and the
  configuration file itself for details on how to do this.  Note that by
  not defining the variable tkdesk(button_bar) in that file or by not
  defining tkdesk(small_button_bar) the button for file viewer or list
  windows may be surpressed respectively.

  2.3.  The Path Entry

  This entry field displays the current path of the file browser or file
  list. You can also type directly into this field to change the display
  to another directory.  There is a sort of "auto-completion" available;
  if you type only the first part of a directory's name and press
  Control-Tab, its name will be automatically completed as far as
  there's no ambiguity.

  If you click the right mouse button over this field a popup menu
  appears which lets you select any of the current directory's parent
  directories and their subdirectories.  You can also open files
  directly from this popup menu.

  The button to the right of the entry field contains a menu of the last
  30 (default value this may be changed in the "System" configuration
  file) directories you have visited. If you select one of these, the
  current path of the browser will change to it. The "Control-trick" to
  open the selected path in a new list window that's been described in
  section ``Directories'' works here as well!

  2.4.  The File Listboxes

  The main part of the file browser and list windows is taken up by the
  file listboxes.  Directories are by default displayed in blue with a
  bold font, executable files in red and bold, and regular files in
  black and a medium font.  These settings as well as the color, font
  and icons used for individual file types may be configured via the
  FileTags configuration file.  See section ``Configuration of TkDesk''
  for details on how to do this.

  Right above each listbox the name of the directory whose contents it
  shows is displayed, together with the current file mask settings.
  Clicking on this label reveals a menu with the following entries:

     Refresh
        Refreshes the listbox contents.  Although TkDesk refreshes all
        its file lists every 5 seconds (default), sometimes you may want
        to have a file listbox instantaneously updated.

     Set Mask...
        Sets a mask for this listbox's display.  For example, you can
        configure the listbox to only display or select files matching
        the pattern *.gif.  Multiple masks separated by spaces may be
        entered to display files matching any of these.  A history menu
        button for reusing masks previously entered is also provided, as
        well as a checkbutton for inverting the mask's effect (i.e. only
        files not matching the given mask will be displayed).

     No Mask
        Removes a previously activated file mask.

     Disk Usage
        Calculates the directory's disk usage, i.e. the number of
        kilobytes (default) occupied by that directory and all its
        subdirectories.  A window will appear when the calculation is
        complete, containing a sorted list of all subdirectories and
        their individual disk usages.  If you double-click on any of its
        entries, a new file list window will appear displaying the
        directory's contents.  Clicking the right mouse button over any
        of the directories displays its associated popup menu.

     Free Space
        Displays the space available in the file system of this
        listbox's directory, using TkDesk's "Periodic Execution" window.

     Execute here...
        Asks for a command to execute in the directory displayed by this
        listbox.  All the usual TkDesk %-sequences to work with the
        names of selected files may be used, e.g. %A to pass all
        currently selected files to the command.

     Execute as root...
        The same as the previous one, except the command will be run
        under root permission after asking you for the root password
        (and you entered the correct one...).

     Long Listing
        Instead of just the file names displays a "long listing" i.e. a
        listing containing all the details such as size, permission
        bits, date and time of last modification etc.

     Show All Files
        Whether to display files starting with a dot (".") or not.

     Inverse Order
        Whether to invert the current sorting order.

     Sort by...
        This is identical to the entry of the same name in the menu
        bar's "Options" menu, but affects this single listbox only.

     Open List Window
        If this listbox is part of a file browser window, open a new
        list window displaying this listbox's directory.

     Open Browser
        Else, open a browser with this directory.

  This menubutton can also be used to drag and drop files, as well as to
  drag the directory displayed in the associated listbox to another
  target, e.g.  the root window by pressing the middle mouse button over
  the listbox title menu button.

  2.4.1.  Handling of the Listboxes (Bindings)

  The handling of the file browser windows is very similar to that of
  the NeXT file manager: when you double click on a directory, the
  listbox to the right of the current one will display this directory's
  contents.  You can open a directory in this listbox, and the listbox
  to the right of this one will display its contents.  This way you can
  browse through complete directory hierarchies, while having instant
  access to the contents of the complete directory tree. When the number
  of opened directories exceeds the number of visible listboxes, you can
  scroll the listboxes with the horizontal scrollbar which is located
  right above the file listboxes.

  Files are selected in the file listboxes using the left mouse button.
  A single click selects a single file, deselecting all other files. If
  the Control key is pressed simultaneously, the old selection will be
  retained. By dragging the mouse pointer over a file list, while at the
  same time pressing the left mouse button, a set of files can be
  selected.  Shift-doubleclick selects all files in that file list.
  Holding down the shift button extends the current selection unto that
  file (a.k.a. "range-selection").

  Note that if the option "Single Click (Dirs)" is set in the "Options"
  menu a single click on a directory will suffice open it. In this case
  you need to use Control-Click to select a single directory.

  A double click on any listbox item performs its default action.  For
  directories this is to open it, for executables this is to execute it,
  and for files it invokes the first entry of the corresponding popup
  menu as defined in the "Popups" configuration file (see below). If the
  Control key is pressed while double-clicking a directory, a new file
  list or file browser window (depending on the setting of the "Always
  In Browser" option) is created displaying the contents of that
  directory.  For files, a dialog box will appear asking for a command
  to execute on that file.

  Files can be dragged by pressing the middle mouse button over any
  selected file. If no file is selected, the clicked-over file will be
  selected.  Files can be dropped by releasing the mouse button over any
  other file listbox and the menubutton above them, over windows of the
  built-in editor, over the application bar (if the corresponding button
  has been configured to handle dropped files), over iconified file
  browsers and file lists and in general over any other application
  supporting the file protocol of the BLT package's drag and drop
  implementation.  Valid drop targets can be identified by looking at
  the window that is displayed while files are dragged: the window's
  relief appears raised if over a valid target, flat if not.

  The right mouse button is used in the file listboxes to access the
  file-specific popup menu. Every popup menu contains a submenu, labeled
  with the file's name, which contains entries for the most common file
  operations. The remaining entries of the menu can be configured via
  the configuration file Popups. See section ``Configuration of TkDesk''
  for details on how to do this.

  Since version 1.1 the file listboxes may also be fully controlled
  using the keyboard:

     Up-/Down Arrow
        Move the selection one file up/down.

     Page Up/Down
        Move the selection one page up/down.

     Home/End
        Move the selection to first/last item in the listbox.

     A-Z
        Select the first file matching the character pressed, cycle
        through subsequent matches on repeated pressing of the same key.

     Return
        Open selected file.

     Menu (the key left to the right Control key on W95
        keyboards)" Display the currently selected file's popup menu,
        the menu itself may also be operated using Up/Down, Return, and
        Esc.

     Backspace
        Change directory to the parent directory.

  2.5.  The Status Bar

  The status bar is located at the bottom edge of file browser windows.
  If "Status in List Windows" is selected in the "Options" menu file
  list windows will contain a status bar as well.

  It displays either

  o  the current state of TkDesk,

  o  the amount of free space in the current file system,

  o  details about the currently selected file, or

  o  number and total size of currently selected files.

  3.  The File List Window

  The file list window is basically a more compact version of the file
  browser window.  It displays only one listbox, which results in the
  fact that the contents of opened directories are always displayed in
  the same listbox, and it doesn't have a status bar unless "Status in
  List Windows" is set in the "Options" menu.  Its advantage is that it
  is more quickly created than a file browser window and occupies less
  space on your screen.  My usual setup is that I have one file browser
  and lots of file lists opened.

  The menu bar of the file list windows is also more compact, but allows
  access to all menus of the file browser through submenus of the
  "Others" menu.  This menu contains one additional entry to open a file
  browser window displaying this file list's directory.

  4.  File Operations

  4.1.  File Information

  The "File Information" window displays detailed information about a
  file. It can also be used to change the owner or access-permissions of
  a file. In addition, an annotation to a file can be added here.

  The following information is displayed:

     Path
        The path of the file.

     Size
        The size of the file in bytes.

     Modified
        When the file was last modified. By clicking on the button
        displaying the date file can be "touched", ie. their
        modification timestamp will be set to the current time.

     Owner
        Displays the owner of the file. By clicking the button
        displaying the owner, the owner can be changed to another user.

     Group
        Displays the group ownership of the file. By clicking the button
        displaying the group's name, the group can be changed.

     Mode
        Here the access permissions are displayed in "ls -l" style. The
        first three button correspond to the rights of the owner (r: may
        read, w: may write, x: may execute or open the directory), the
        second three buttons to the rights of the group, and the last
        three buttons to every one else's rights. The "x" buttons are
        special in that they cycle through four settings: x for
        executable, s for set user/group id and executable, S for set id
        only, and - for not executable.  Note that using the right mouse
        button toggles between - and x only.  Clicking the middle mouse
        button over any of these buttons copies its current setting to
        the corresponding button in the other two groups.  If the
        settings of any of these buttons is changed, the "Change Mode"
        button at the bottom edge of the window must be clicked to
        actually change the file's permissions.

     Links
        Number of (hard) links to this file.

     Type
        Tries to give some information about the file's contents. TkDesk
        uses the shell command file for this.

  In the "Annotation" text field you can enter any remarks about the
  file. This annotation will be saved when the "Close" button is
  pressed.  Files having annotations attached to them will appear
  underlined in the file listboxes, and their popup menu will contain
  the first few words of that annotation as an "informative" menu entry.

  If the window displays information about a file an additional button
  labeled "Disk Usage" is provided, which calculates the disk usage of
  the hierarchy rooted at that directory. The entries of the "Disk
  Usage" window can be double-clicked to open new file list windows.

  4.2.  Copying, Moving and Deleting Files

  These functions can be accessed from the "File" menu, among others.
  There is one dialog for copying, moving and linking files (plus an
  arbitrary number of user-defined actions such as diff and patch, as
  configured in the "Popups" config file), one dialog for renaming files
  (which does nothing else than moving the file to its new name), and
  one dialog for deleting files.

  The "Rename" dialog is very straight-forward and probably does not
  need further explanation.  The "Copy etc." dialog contains the obvious
  source and destination entry fields, plus a checkbutton labeled "all
  selected files" if more that one file was selected when this dialog
  was opened.  If this checkbutton is selected (default) the operation
  will be applied on all selected files.  If it is not checked, each
  file will be handled individually.  The "Skip" button can then be used
  for skipping individual files.

  The "Delete" dialog also contains this checkbutton, plus a checkbutton
  labeled "Delete permanently".  If this checkbutton is selected, the
  files will not be moved to the trash can but will be really and
  ultimately deleted!!  The default setting of this checkbutton can be
  set from the "Options" menu.

  4.3.  Finding Files

  The "File" menu contains two entries for finding files: "Find
  Files..." and "Find Annotation...". Files can be annotated through
  their "Info" dialog (accessible from the "File" menu or from their
  popup menu), see section ``File Information''.

  "Find Annotation" enables you to look for an annotated file whose
  annotation matches a certain regular expression (which can be as
  simple as an ordinary string).

  "Find Files" lets you look for files (or rather: let's you instruct
  TkDesk to look for files) whose names match one or multiple patterns,
  which are of a certain type (such as directory), which contain a
  certain string, which are smaller or bigger than a certain number of
  kilobytes or which are younger/older than a certain date.  All fields
  which are not left blank in this dialog will be combined with a
  logical AND. This dialog is currently the only one utilizing the
  balloon help capability of TkDesk, so for now I would like to refer
  you to this.  For instance, if you want to know how to enter the file
  size you're looking for, place the mouse pointer over the "Size" entry
  field without moving it for a few seconds.

  Both "Find" dialogs display their results in the same file listboxes
  that are used by the file list and browser windows, so the same
  bindings described in section ``Handling of the Listboxes (Bindings)''
  apply here as well!

  5.  Cascading Directory Popup Menus

  Ugh, what a title...  However, one of the most powerful features of
  TkDesk are its "cascading directory popup menus."  These are menus
  that start from a given directory, contain submenus for each
  subdirectories (and possibly menu entries for files), and that
  dynamically add submenus as you traverse the menu.  Hm, kinda hard to
  explain, but pretty cool.  These menus are the ones that are
  accessible through menu entries "Directory/ Trees/ Home" and "Root",
  by clicking the right mouse button in the file browser and list
  window's path entry field, and through the popup menus of directories
  (submenu "Subdirectories" and "... and Files").  They may also appear
  in other places, depending on your configuration of TkDesk.

  There are two special bindings available in these menus:

     Control-Mousebutton-Release
        On a menu entry associated with a directory this opens a new
        file list window displaying this directory's contents.  On a
        file it asks for a command to run on this file by displaying the
        "Open or Execute" dialog.

     Left-and-Right-Mousebutton-P
        through subsequent matches on repeated pressing of the same key.

     Return
        Open selected file.

     Menu (the key left to the right Control key on W95
        keyboards)" Display the currently selected file's popup menu,
        the menu itself may also be operated using Up/Down, Return, and
        Esc.

     Backspace
        Change directory to the parent directory.

  2.5.  The Status Bar

  The status bar is located at the bottom edge of file browser windows.
  If "Status in List Windows" is selected in the "Options" menu file
  list windows will contain a status bar as well.

  It displays either

  o  the current state of TkDesk,

  o  the amount of free space in the current file system,

  o  details about the currently selected file, or

  o  number and total size of currently selected files.

  3.  The File List Window

  The file list window is basically a more compact version of the file
  browser window.  It displays only one listbox, which results in the
  fact that the contents of opened directories are always displayed in
  the same listbox, and it doesn't have a status bar unless "Status in
  List Windows" is set in the "Options" menu.  Its advantage is that it
  is more quickly created than a file browser window and occupies less
  space on your screen.  My usual setup is that I have one file browser
  and lots of file lists opened.

  The menu bar of the file list windows is also more compact, but allows
  access to all menus of the file browser through submenus of the
  "Others" menu.  This menu contains one additional entry to open a file
  browser window displaying this file list's directory.

  4.  File Operations

  4.1.  File Information

  The "File Information" window displays detailed information about a
  file. It can also be used to change the owner or access-permissions of
  a file. In addition, an annotation to a file can be added here.

  The following information is displayed:

     Path
        The path of the file.

     Size
        The size of the file in bytes.

     Modified
        When the file was last modified. By clicking on the button
        displaying the date file can be "touched", ie. their
        modification timestamp will be set to the current time.

     Owner
        Displays the owner of the file. By clicking the button
        displaying the owner, the owner can be changed to another user.

     Group
        Displays the group ownership of the file. By clicking the button
        displaying the group's name, the group can be changed.

     Mode
        Here the access permissions are displayed in "ls -l" style. The
        first three button correspond to the rights of the owner (r: may
        read, w: may write, x: may execute or open the directory), the
        second three buttons to the rights of the group, and the last
        three buttons to every one else's rights. The "x" buttons are
        special in that they cycle through four settings: x for
        executable, s for set user/group id and executable, S for set id
        only, and - for not executable.  Note that using the right mouse
        button toggles between - and x only.  Clicking the middle mouse
        button over any of these buttons copies its current setting to
        the corresponding button in the other two groups.  If the
        settings of any of these buttons is changed, the "Change Mode"
        button at the bottom edge of the window must be clicked to
        actually change the file's permissions.

     Links
        Number of (hard) links to this file.

     Type
        Tries to give some information about the file's contents. TkDesk
        uses the shell command file for this.

  In the "Annotation" text field you can enter any remarks about the
  file. This annotation will be saved when the "Close" button is
  pressed.  Files having annotations attached to them will appear
  underlined in the file listboxes, and their popup menu will contain
  the first few words of that annotation as an "informative" menu entry.

  If the window displays information about a file an additional button
  labeled "Disk Usage" is provided, which calculates the disk usage of
  the hierarchy rooted at that directory. The entries of the "Disk
  Usage" window can be double-clicked to open new file list windows.

  4.2.  Copying, Moving and Deleting Files

  These functions can be accessed from the "File" menu, among others.
  There is one dialog for copying, moving and linking files (plus an
  arbitrary number of user-defined actions such as diff and patch, as
  configured in the "Popups" config file), one dialog for renaming files
  (which does nothing else than moving the file to its new name), and
  one dialog for deleting files.

  The "Rename" dialog is very straight-forward and probably does not
  need further explanation.  The "Copy etc." dialog contains the obvious
  source and destination entry fields, plus a checkbutton labeled "all
  selected files" if more that one file was selected when this dialog
  was opened.  If this checkbutton is selected (default) the operation
  will be applied on all selected files.  If it is not checked, each
  file will be handled individually.  The "Skip" button can then be used
  for skipping individual files.

  The "Delete" dialog also contains this checkbutton, plus a checkbutton
  labeled "Delete permanently".  If this checkbutton is selected, the
  files will not be moved to the trash can but will be really and
  ultimately deleted!!  The default setting of this checkbutton can be
  set from the "Options" menu.

  4.3.  Finding Files

  The "File" menu contains two entries for finding files: "Find
  Files..." and "Find Annotation...". Files can be annotated through
  their "Info" dialog (accessible from the "File" menu or from their
  popup menu), see section ``File Information''.

  "Find Annotation" enables you to look for an annotated file whose
  annotation matches a certain regular expression (which can be as
  simple as an ordinary string).

  "Find Files" lets you look for files (or rather: let's you instruct
  TkDesk to look for files) whose names match one or multiple patterns,
  which are of a certain type (such as directory), which contain a
  certain string, which are smaller or bigger than a certain number of
  kilobytes or which are younger/older than a certain date.  All fields
  which are not left blank in this dialog will be combined with a
  logical AND. This dialog is currently the only one utilizing the
  balloon help capability of TkDesk, so for now I would like to refer
  you to this.  For instance, if you want to know how to enter the file
  size you're looking for, place the mouse pointer over the "Size" entry
  field without moving it for a few seconds.

  Both "Find" dialogs display their results in the same file listboxes
  that are used by the file list and browser windows, so the same
  bindings described in section ``Handling of the Listboxes (Bindings)''
  apply here as well!

  5.  Cascading Directory Popup Menus

  Ugh, what a title...  However, one of the most powerful features of
  TkDesk are its "cascading directory popup menus."  These are menus
  that start from a given directory, contain submenus for each
  subdirectories (and possibly menu entries for files), and that
  dynamically add submenus as you traverse the menu.  Hm, kinda hard to
  explain, but pretty cool.  These menus are the ones that are
  accessible through menu entries "Directory/ Trees/ Home" and "Root",
  by clicking the right mouse button in the file browser and list
  window's path entry field, and through the popup menus of directories
  (submenu "Subdirectories" and "... and Files").  They may also appear
  in other places, depending on your configuration of TkDesk.

  There are two special bindings available in these menus:

     Control-Mousebutton-Release
        On a menu entry associated with a directory this opens a new
        file list window displaying this directory's contents.  On a
        file it asks for a command to run on this file by displaying the
        "Open or Execute" dialog.

     Left-and-Right-Mousebutton-P
        through subsequent matches on repeated pressing of the same key.

     Return
        Open selected file.

     Menu (the key left to the right Control key on W95
        keyboards)" Display the currently selected file's popup menu,
        the menu itself may also be operated using Up/Down, Return, and
        Esc.

     Backspace
        Change directory to the parent directory.

  2.5.  The Status Bar

  The status bar is located at the bottom edge of file browser windows.
  If "Status in List Windows" is selected in the "Options" menu file
  list windows will contain a status bar as well.

  It displays either

  o  the current state of TkDesk,

  o  the amount of free space in the current file system,

  o  details about the currently selected file, or

  o  number and total size of currently selected files.

  3.  The File List Window

  The file list window is basically a more compact version of the file
  browser window.  It displays only one listbox, which results in the
  fact that the contents of opened directories are always displayed in
  the same listbox, and it doesn't have a status bar unless "Status in
  List Windows" is set in the "Options" menu.  Its advantage is that it
  is more quickly created than a file browser window and occupies less
  space on your screen.  My usual setup is that I have one file browser
  and lots of file lists opened.

  The menu bar of the file list windows is also more compact, but allows
  access to all menus of the file browser through submenus of the
  "Others" menu.  This menu contains one additional entry to open a file
  browser window displaying this file list's directory.

  4.  File Operations

  4.1.  File Information

  The "File Information" window displays detailed information about a
  file. It can also be used to change the owner or access-permissions of
  a file. In addition, an annotation to a file can be added here.

  The following information is displayed:

     Path
        The path of the file.

     Size
        The size of the file in bytes.

     Modified
        When the file was last modified. By clicking on the button
        displaying the date file can be "touched", ie. their
        modification timestamp will be set to the current time.

     Owner
        Displays the owner of the file. By clicking the button
        displaying the owner, the owner can be changed to another user.

     Group
        Displays the group ownership of the file. By clicking the button
        displaying the group's name, the group can be changed.

     Mode
        Here the access permissions are displayed in "ls -l" style. The
        first three button correspond to the rights of the owner (r: may
        read, w: may write, x: may execute or open the directory), the
        second three buttons to the rights of the group, and the last
        three buttons to every one else's rights. The "x" buttons are
        special in that they cycle through four settings: x for
        executable, s for set user/group id and executable, S for set id
        only, and - for not executable.  Note that using the right mouse
        button toggles between - and x only.  Clicking the middle mouse
        button over any of these buttons copies its current setting to
        the corresponding button in the other two groups.  If the
        settings of any of these buttons is changed, the "Change Mode"
        button at the bottom edge of the window must be clicked to
        actually change the file's permissions.

     Links
        Number of (hard) links to this file.

     Type
        Tries to give some information about the file's contents. TkDesk
        uses the shell command file for this.

  In the "Annotation" text field you can enter any remarks about the
  file. This annotation will be saved when the "Close" button is
  pressed.  Files having annotations attached to them will appear
  underlined in the file listboxes, and their popup menu will contain
  the first few words of that annotation as an "informative" menu entry.

  If the window displays information about a file an additional button
  labeled "Disk Usage" is provided, which calculates the disk usage of
  the hierarchy rooted at that directory. The entries of the "Disk
  Usage" window can be double-clicked to open new file list windows.

  4.2.  Copying, Moving and Deleting Files

  These functions can be accessed from the "File" menu, among others.
  There is one dialog for copying, moving and linking files (plus an
  arbitrary number of user-defined actions such as diff and patch, as
  configured in the "Popups" config file), one dialog for renaming files
  (which does nothing else than moving the file to its new name), and
  one dialog for deleting files.

  The "Rename" dialog is very straight-forward and probably does not
  need further explanation.  The "Copy etc." dialog contains the obvious
  source and destination entry fields, plus a checkbutton labeled "all
  selected files" if more that one file was selected when this dialog
  was opened.  If this checkbutton is selected (default) the operation
  will be applied on all selected files.  If it is not checked, each
  file will be handled individually.  The "Skip" button can then be used
  for skipping individual files.

  The "Delete" dialog also contains this checkbutton, plus a checkbutton
  labeled "Delete permanently".  If this checkbutton is selected, the
  files will not be moved to the trash can but will be really and
  ultimately deleted!!  The default setting of this checkbutton can be
  set from the "Options" menu.

  4.3.  Finding Files

  The "File" menu contains two entries for finding files: "Find
  Files..." and "Find Annotation...". Files can be annotated through
  their "Info" dialog (accessible from the "File" menu or from their
  popup menu), see section ``File Information''.

  "Find Annotation" enables you to look for an annotated file whose
  annotation matches a certain regular expression (which can be as
  simple as an ordinary string).

  "Find Files" lets you look for files (or rather: let's you instruct
  TkDesk to look for files) whose names match one or multiple patterns,
  which are of a certain type (such as directory), which contain a
  certain string, which are smaller or bigger than a certain number of
  kilobytes or which are younger/older than a certain date.  All fields
  which are not left blank in this dialog will be combined with a
  logical AND. This dialog is currently the only one utilizing the
  balloon help capability of TkDesk, so for now I would like to refer
  you to this.  For instance, if you want to know how to enter the file
  size you're looking for, place the mouse pointer over the "Size" entry
  field without moving it for a few seconds.

  Both "Find" dialogs display their results in the same file listboxes
  that are used by the file list and browser windows, so the same
  bindings described in section ``Handling of the Listboxes (Bindings)''
  apply here as well!

  5.  Cascading Directory Popup Menus

  Ugh, what a title...  However, one of the most powerful features of
  TkDesk are its "cascading directory popup menus."  These are menus
  that start from a given directory, contain submenus for each
  subdirectories (and possibly menu entries for files), and that
  dynamically add submenus as you traverse the menu.  Hm, kinda hard to
  explain, but pretty cool.  These menus are the ones that are
  accessible through menu entries "Directory/ Trees/ Home" and "Root",
  by clicking the right mouse button in the file browser and list
  window's path entry field, and through the popup menus of directories
  (submenu "Subdirectories" and "... and Files").  They may also appear
  in other places, depending on your configuration of TkDesk.

  There are two special bindings available in these menus:

     Control-Mousebutton-Release
        On a menu entry associated with a directory this opens a new
        file list window displaying this directory's contents.  On a
        file it asks for a command to run on this file by displaying the
        "Open or Execute" dialog.

     Left-and-Right-Mousebutton-P
        through subsequent matches on repeated pressing of the same key.

     Return
        Open selected file.

     Menu (the key left to the right Control key on W95
        keyboards)" Display the currently selected file's popup menu,
        the menu itself may also be operated using Up/Down, Return, and
        Esc.

     Backspace
        Change directory to the parent directory.

  2.5.  The Status Bar

  The status bar is located at the bottom edge of file browser windows.
  If "Status in List Windows" is selected in the "Options" menu file
  list windows will contain a status bar as well.

  It displays either

  o  the current state of TkDesk,

  o  the amount of free space in the current file system,

  o  details about the currently selected file, or

  o  number and total size of currently selected files.

  3.  The File List Window

  The file list window is basically a more compact version of the file
  browser window.  It displays only one listbox, which results in the
  fact that the contents of opened directories are always displayed in
  the same listbox, and it doesn't have a status bar unless "Status in
  List Windows" is set in the "Options" menu.  Its advantage is that it
  is more quickly created than a file browser window and occupies less
  space on your screen.  My usual setup is that I have one file browser
  and lots of file lists opened.

  The menu bar of the file list windows is also more compact, but allows
  access to all menus of the file browser through submenus of the
  "Others" menu.  This menu contains one additional entry to open a file
  browser window displaying this file list's directory.

  4.  File Operations

  4.1.  File Information

  The "File Information" window displays detailed information about a
  file. It can also be used to change the owner or access-permissions of
  a file. In addition, an annotation to a file can be added here.

  The following information is displayed:

     Path
        The path of the file.

     Size
        The size of the file in bytes.

     Modified
        When the file was last modified. By clicking on the button
        displaying the date file can be "touched", ie. their
        modification timestamp will be set to the current time.

     Owner
        Displays the owner of the file. By clicking the button
        displaying the owner, the owner can be changed to another user.

     Group
        Displays the group ownership of the file. By clicking the button
        displaying the group's name, the group can be changed.

     Mode
        Here the access permissions are displayed in "ls -l" style. The
        first three button correspond to the rights of the owner (r: may
        read, w: may write, x: may execute or open the directory), the
        second three buttons to the rights of the group, and the last
        three buttons to every one else's rights. The "x" buttons are
        special in that they cycle through four settings: x for
        executable, s for set user/group id and executable, S for set id
        only, and - for not executable.  Note that using the right mouse
        button toggles between - and x only.  Clicking the middle mouse
        button over any of these buttons copies its current setting to
        the corresponding button in the other two groups.  If the
        settings of any of these buttons is changed, the "Change Mode"
        button at the bottom edge of the window must be clicked to
        actually change the file's permissions.

     Links
        Number of (hard) links to this file.

     Type
        Tries to give some information about the file's contents. TkDesk
        uses the shell command file for this.

  In the "Annotation" text field you can enter any remarks about the
  file. This annotation will be saved when the "Close" button is
  pressed.  Files having annotations attached to them will appear
  underlined in the file listboxes, and their popup menu will contain
  the first few words of that annotation as an "informative" menu entry.

  If the window displays information about a file an additional button
  labeled "Disk Usage" is provided, which calculates the disk usage of
  the hierarchy rooted at that directory. The entries of the "Disk
  Usage" window can be double-clicked to open new file list windows.

  4.2.  Copying, Moving and Deleting Files

  These functions can be accessed from the "File" menu, among others.
  There is one dialog for copying, moving and linking files (plus an
  arbitrary number of user-defined actions such as diff and patch, as
  configured in the "Popups" config file), one dialog for renaming files
  (which does nothing else than moving the file to its new name), and
  one dialog for deleting files.

  The "Rename" dialog is very straight-forward and probably does not
  need further explanation.  The "Copy etc." dialog contains the obvious
  source and destination entry fields, plus a checkbutton labeled "all
  selected files" if more that one file was selected when this dialog
  was opened.  If this checkbutton is selected (default) the operation
  will be applied on all selected files.  If it is not checked, each
  file will be handled individually.  The "Skip" button can then be used
  for skipping individual files.

  The "Delete" dialog also contains this checkbutton, plus a checkbutton
  labeled "Delete permanently".  If this checkbutton is selected, the
  files will not be moved to the trash can but will be really and
  ultimately deleted!!  The default setting of this checkbutton can be
  set from the "Options" menu.

  4.3.  Finding Files

  The "File" menu contains two entries for finding files: "Find
  Files..." and "Find Annotation...". Files can be annotated through
  their "Info" dialog (accessible from the "File" menu or from their
  popup menu), see section ``File Information''.

  "Find Annotation" enables you to look for an annotated file whose
  annotation matches a certain regular expression (which can be as
  simple as an ordinary string).

  "Find Files" lets you look for files (or rather: let's you instruct
  TkDesk to look for files) whose names match one or multiple patterns,
  which are of a certain type (such as directory), which contain a
  certain string, which are smaller or bigger than a certain number of
  kilobytes or which are younger/older than a certain date.  All fields
  which are not left blank in this dialog will be combined with a
  logical AND. This dialog is currently the only one utilizing the
  balloon help capability of TkDesk, so for now I would like to refer
  you to this.  For instance, if you want to know how to enter the file
  size you're looking for, place the mouse pointer over the "Size" entry
  field without moving it for a few seconds.

  Both "Find" dialogs display their results in the same file listboxes
  that are used by the file list and browser windows, so the same
  bindings described in section ``Handling of the Listboxes (Bindings)''
  apply here as well!

  5.  Cascading Directory Popup Menus

  Ugh, what a title...  However, one of the most powerful features of
  TkDesk are its "cascading directory popup menus."  These are menus
  that start from a given directory, contain submenus for each
  subdirectories (and possibly menu entries for files), and that
  dynamically add submenus as you traverse the menu.  Hm, kinda hard to
  explain, but pretty cool.  These menus are the ones that are
  accessible through menu entries "Directory/ Trees/ Home" and "Root",
  by clicking the right mouse button in the file browser and list
  window's path entry field, and through the popup menus of directories
  (submenu "Subdirectories" and "... and Files").  They may also appear
  in other places, depending on your configuration of TkDesk.

  There are two special bindings available in these menus:

     Control-Mousebutton-Release
        On a menu entry associated with a directory this opens a new
        file list window displaying this directory's contents.  On a
        file it asks for a command to run on this file by displaying the
        "Open or Execute" dialog.

     Left-and-Right-Mousebutton-P
        through subsequent matches on repeated pressing of the same key.

     Return
        Open selected file.

     Menu (the key left to the right Control key on W95
        keyboards)" Display the currently selected file's popup menu,
        the menu itself may also be operated using Up/Down, Return, and
        Esc.

     Backspace
        Change directory to the parent directory.

  2.5.  The Status Bar

  The status bar is located at the bottom edge of file browser windows.
  If "Status in List Windows" is selected in the "Options" menu file
  list windows will contain a status bar as well.

  It displays either

  o  the current state of TkDesk,

  o  the amount of free space in the current file system,

  o  details about the currently selected file, or

  o  number and total size of currently selected files.

  3.  The File List Window

  The file list window is basically a more compact version of the file
  browser window.  It displays only one listbox, which results in the
  fact that the contents of opened directories are always displayed in
  the same listbox, and it doesn't have a status bar unless "Status in
  List Windows" is set in the "Options" menu.  Its advantage is that it
  is more quickly created than a file browser window and occupies less
  space on your screen.  My usual setup is that I have one file browser
  and lots of file lists opened.

  The menu bar of the file list windows is also more compact, but allows
  access to all menus of the file browser through submenus of the
  "Others" menu.  This menu contains one additional entry to open a file
  browser window displaying this file list's directory.

  4.  File Operations

  4.1.  File Information

  The "File Information" window displays detailed information about a
  file. It can also be used to change the owner or access-permissions of
  a file. In addition, an annotation to a file can be added here.

  The following information is displayed:

     Path
        The path of the file.

     Size
        The size of the file in bytes.

     Modified
        When the file was last modified. By clicking on the button
        displaying the date file can be "touched", ie. their
        modification timestamp will be set to the current time.

     Owner
        Displays the owner of the file. By clicking the button
        displaying the owner, the owner can be changed to another user.

     Group
        Displays the group ownership of the file. By clicking the button
        displaying the group's name, the group can be changed.

     Mode
        Here the access permissions are displayed in "ls -l" style. The
        first three button correspond to the rights of the owner (r: may
        read, w: may write, x: may execute or open the directory), the
        second three buttons to the rights of the group, and the last
        three buttons to every one else's rights. The "x" buttons are
        special in that they cycle through four settings: x for
        executable, s for set user/group id and executable, S for set id
        only, and - for not executable.  Note that using the right mouse
        button toggles between - and x only.  Clicking the middle mouse
        button over any of these buttons copies its current setting to
        the corresponding button in the other two groups.  If the
        settings of any of these buttons is changed, the "Change Mode"
        button at the bottom edge of the window must be clicked to
        actually change the file's permissions.

     Links
        Number of (hard) links to this file.

     Type
        Tries to give some information about the file's contents. TkDesk
        uses the shell command file for this.

  In the "Annotation" text field you can enter any remarks about the
  file. This annotation will be saved when the "Close" button is
  pressed.  Files having annotations attached to them will appear
  underlined in the file listboxes, and their popup menu will contain
  the first few words of that annotation as an "informative" menu entry.

  If the window displays information about a file an additional button
  labeled "Disk Usage" is provided, which calculates the disk usage of
  the hierarchy rooted at that directory. The entries of the "Disk
  Usage" window can be double-clicked to open new file list windows.

  4.2.  Copying, Moving and Deleting Files

  These functions can be accessed from the "File" menu, among others.
  There is one dialog for copying, moving and linking files (plus an
  arbitrary number of user-defined actions such as diff and patch, as
  configured in the "Popups" config file), one dialog for renaming files
  (which does nothing else than moving the file to its new name), and
  one dialog for deleting files.

  The "Rename" dialog is very straight-forward and probably does not
  need further explanation.  The "Copy etc." dialog contains the obvious
  source and destination entry fields, plus a checkbutton labeled "all
  selected files" if more that one file was selected when this dialog
  was opened.  If this checkbutton is selected (default) the operation
  will be applied on all selected files.  If it is not checked, each
  file will be handled individually.  The "Skip" button can then be used
  for skipping individual files.

  The "Delete" dialog also contains this checkbutton, plus a checkbutton
  labeled "Delete permanently".  If this checkbutton is selected, the
  files will not be moved to the trash can but will be really and
  ultimately deleted!!  The default setting of this checkbutton can be
  set from the "Options" menu.

  4.3.  Finding Files

  The "File" menu contains two entries for finding files: "Find
  Files..." and "Find Annotation...". Files can be annotated through
  their "Info" dialog (accessible from the "File" menu or from their
  popup menu), see section ``File Information''.

  "Find Annotation" enables you to look for an annotated file whose
  annotation matches a certain regular expression (which can be as
  simple as an ordinary string).

  "Find Files" lets you look for files (or rather: let's you instruct
  TkDesk to look for files) whose names match one or multiple patterns,
  which are of a certain type (such as directory), which contain a
  certain string, which are smaller or bigger than a certain number of
  kilobytes or which are younger/older than a certain date.  All fields
  which are not left blank in this dialog will be combined with a
  logical AND. This dialog is currently the only one utilizing the
  balloon help capability of TkDesk, so for now I would like to refer
  you to this.  For instance, if you want to know how to enter the file
  size you're looking for, place the mouse pointer over the "Size" entry
  field without moving it for a few seconds.

  Both "Find" dialogs display their results in the same file listboxes
  that are used by the file list and browser windows, so the same
  bindings described in section ``Handling of the Listboxes (Bindings)''
  apply here as well!

  5.  Cascading Directory Popup Menus

  Ugh, what a title...  However, one of the most powerful features of
  TkDesk are its "cascading directory popup menus."  These are menus
  that start from a given directory, contain submenus for each
  subdirectories (and possibly menu entries for files), and that
  dynamically add submenus as you traverse the menu.  Hm, kinda hard to
  explain, but pretty cool.  These menus are the ones that are
  accessible through menu entries "Directory/ Trees/ Home" and "Root",
  by clicking the right mouse button in the file browser and list
  window's path entry field, and through the popup menus of directories
  (submenu "Subdirectories" and "... and Files").  They may also appear
  in other places, depending on your configuration of TkDesk.

  There are two special bindings available in these menus:

     Control-Mousebutton-Release
        On a menu entry associated with a directory this opens a new
        file list window displaying this directory's contents.  On a
        file it asks for a command to run on this file by displaying the
        "Open or Execute" dialog.

     Left-and-Right-Mousebutton-P
        through subsequent matches on repeated pressing of the same key.

     Return
        Open selected file.

     Menu (the key left to the right Control key on W95
        keyboards)" Display the currently selected file's popup menu,
        the menu itself may also be operated using Up/Down, Return, and
        Esc.

     Backspace
        Change directory to the parent directory.

  2.5.  The Status Bar

  The status bar is located at the bottom edge of file browser windows.
  If "Status in List Windows" is selected in the "Options" menu file
  list windows will contain a status bar as well.

  It displays either

  o  the current state of TkDesk,

  o  the amount of free space in the current file system,

  o  details about the currently selected file, or

  o  number and total size of currently selected files.

  3.  The File List Window

  The file list window is basically a more compact version of the file
  browser window.  It displays only one listbox, which results in the
  fact that the contents of opened directories are always displayed in
  the same listbox, and it doesn't have a status bar unless "Status in
  List Windows" is set in the "Options" menu.  Its advantage is that it
  is more quickly created than a file browser window and occupies less
  space on your screen.  My usual setup is that I have one file browser
  and lots of file lists opened.

  The menu bar of the file list windows is also more compact, but allows
  access to all menus of the file browser through submenus of the
  "Others" menu.  This menu contains one additional entry to open a file
  browser window displaying this file list's directory.

  4.  File Operations

  4.1.  File Information

  T