leap.ksh

来自「Solaris环境下Shell编程编程」· KSH 代码 · 共 31 行

#!/bin/ksh

# Script name: leap.ksh

# Assume the user enters the year on the command line 
# when they execute the script.

if [ $# != 1 ]
then
	echo "You need to enter the year."
	exit 1
fi
 
year=$1

if (( (year % 400) == 0 ))
then
	print "$year is a leap year!"
elif (( (year % 4) == 0 ))
then
	if (( (year % 100) != 0 ))
	then
		print "$year is a leap year!"
	else
		print "$year is not a leap year."
	fi
else 
	print "$year is not a leap year."
fi