msort — sort messages

       Leah Neukirchen <leah@vuxu.org>

msort  sorts  messages  according  to  various  orders,  and prints, separated by newlines, the resulting
       message names.  (See mmsg(7) for the message argument syntax.)

       If no messages are specified, msort will read filenames from the  standard  input,  or  use  the  default
       sequence if used interactively.

       The options are as follows:

       -r      Reverse order.

       -f      Sort by ‘From:’.

       -d      Sort by date.

       -s      Sort by ‘Subject:’ (modulo various variants of ‘Re:’).

       -F      Sort by filename, using proper order for numbers in filenames.

       -M      Sort by message file modification time.

       -S      Sort by message file size.

       -U      Sort unread messages after read messages.

       -I      Sort flagged messages before unflagged messages.

       The msort utility exits 0 on success, and >0 if an error occurs.

msort is in the public domain.

       To  the  extent  possible  under  law,  the  creator of this work has waived all copyright and related or
       neighboring rights to this work.

       http://creativecommons.org/publicdomain/zero/1.0/

Debian                                            July 22, 2016                                         MSORT(1)

       msort — sort messages

mmsg(7)

msort [-r] [-f | -d | -s | -F | -M | -S | -U | -I] [msgs...]