opts3

UNIX[1].shell范例精解(第4版)_code

#!/bin/sh
# Program opts3
# Using getopts -- Third try --
while getopts dq: options
do
	case $options in
	     d) echo "-d is a valid switch ";;
	     q) echo "The argument for -q is $OPTARG";;
	     \?) echo "Usage:opts3 -dq filename ... " 1>&2;;
	esac
done