reformail — E-mail reformatting tool
reformail -s command [option...]
reformail -D len filename
reformail -x header:...
reformail -X header:...
reformail [options...]
The reformail program reads a message on standard input, reformats it in some way, and writes the message to standard output:
The -s option splits the mbox-formatted mailbox file on
standard input into
individual messages.
An external program is executed for each
message. The contents of each individual message will be provided to the
external program on standard input.
If the FILENO environment variable is set to a number,
reformail will consecutively increment
FILENO
each time the program is executed for each individual
message.
If