#!/bin/sh echo "Enter the year" read year x=`expr $year % 400` y=`expr $year % 100` z=`expr $year % 4` if [ $x -eq 0 ] || [ $y -ne 0 ] && [ $z –eq 0] then echo " Entered year - $year is a leap year" else echo "Entered year - $year is not a leap year " fi
############################ OUTPUT: $sh year.sh enter the year 2016 entered year - 2016 is a leap year $sh year.sh enter the year 2013 entered year - 2013 is not a leap year