usr/src/new/tac/tmail.sh

#! /bin/sh
#       @(#)tmail.sh    1.2 10/17/85
# Print out mail backwards.
# Author: Jay Lepreau, Univ of Utah
#
PATH=/usr/new:/bin:/usr/bin:/usr/ucb
case $# in
        0) file=/usr/spool/mail/$USER
           ;;
        1) if [ -r /usr/spool/mail/$1 ]
           then
                file=/usr/spool/mail/$1
           else
                file=$1
           fi
           ;;
        *) echo "Usage: `basename $0` [ username ] [ mboxfile ]"
           exit 1
           ;;
esac
exec tac '-
From ' $file