getopts2.ksh

Solaris环境下Shell编程编程

#!/bin/ksh

# Script name: getopts2.ksh

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

year=$(date +%Y)

while getopts :dm: opt_char
do
	case $opt_char in
	d) 
		print -n "Date: " 	# -d option given
		date 
		;;

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

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

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