#!/bin/sh+− ###set -e+− +− trap "exit" INT+− +− files=${1:-assignment20187-*}+− +− for sd in $files; do+− cd $sd+− #cp output output1+− cmp -s output output1 > /dev/null+− if [ $? -eq 1 ]; then+− echo $sd + "is different"+− fi+− cd ..+− done+− +− +−