leap2.ksh

来自「Solaris环境下Shell编程编程」· KSH 代码 · 共 24 行

#!/bin/ksh

# Script name: leap2.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 )) ||
	(( ( year % 4 ) == 0 && ( year % 100 ) != 0 ))
then
	print "$year is a leap year!"
else 
	print "$year is not a leap year."
fi