閏年腳本
#!/bin/bash echo "please input a year； " read year let " n1 = $year % 4 " let "n2 = $year % 100" let "n3 = $year % 400" if [ ! "n1" -eq 0 ] then leap = 0 elif [ ! "n2" -eq 0 ] then leap = 1 elif [ ! "n3" -eq 0 ] then leap = 0 else leap = 1 fi if [ "leap" -eq 1 ] then echo "$year is a leap year!" else echo "$year is not a year!" fi