getopts2.sh

来自「Solaris环境下Shell编程编程」· Shell 代码 · 共 33 行

#!/bin/sh

# Script name: getopts2.sh

USAGE="usage: $0 [-d] [-m month]"

year=`date +%Y`

while getopts :dm: opt_char
do
	case $opt_char in
	d) 
		echo "Date: \c" 	# -d option given
		date 
		;;

	m) 
		cal $OPTARG $year 	# -m option given with an arg
		;; 

	\?) 
		echo "$OPTARG is not a valid option."
		echo $USAGE 
		;;

	:) 
		echo "The $OPTARG option requires an argument."
		echo "$USAGE" 
		;;
	esac
done