:   HINT
H='
==========
compare file1 file2
==========
compare two files giving report on equality or inequality
==========
'
case $1 in
    -h|hint|help)   echo "$H";exit 0;;
    *)  ;;
esac
cmp -s $1 $2
case $? in
    0)  echo "$1 == $2";/bin/rm/ -i $2;exit 0;;
    1)  echo "$1 != $2";exit 1;;
    2)  echo "<parameter error>";exit 2;;
    *)  echo "?????";exit 9;;
esac