#!/bin/sh -u
# Compare two files in an IF statement, checking the return status of DIFF.
# We don't want the usual output of DIFF on the screen, so we throw it away.
# All we are interested in is the exit status of DIFF, not the output.
#
# NOTE: This script fragment is incomplete - it does not follow all
# the script guidelines set out in "script_style.txt".
#
# -IAN! idallen@idallen.ca

if diff /etc/group /etc/passwd >/dev/null ; then
    echo "the files are the same"
else
    echo "the files are different"
fi