#!/bin/sh CMD=$(basename $0) usage() { echo "usage: $CMD [-m] file [outfile]" >&2 exit 1 } opts="-r" while getopts ":m" c do case "$c" in m) opts="--macbinary";; :|'?') usage;; esac done shift $(($OPTIND - 1)) [ $# -lt 1 ] && usage t1unmac $opts "$@" .