I'M trying to test a function that would be able to determine if it was or was not leap year. I believe my problem lies in the if statement but due to my lack of knowledge concerning shell I don't know what else to do here.
#! /bin/bash
read -p "Enter year" YY
leap_year()
{
if [ (expr 0 -eq (${YY} % 4)) ] && [ (expr 0 -ne (${YY} % 100)) ]; then
echo "Leap Year"
else
echo "Not leap Year"
fi
}
leap_year $YY