Soldato
- Joined
- 18 May 2010
- Posts
- 22,941
- Location
- London
Trying to improve my skills and currently undertaking a bit of self taught bash programming.
I'm working on a little script that along with a few other things will calculate if the year is a leap year if the month is Feb.
I found the following script online and I'm trying to incorporate it in to my script.
However I cannot understand the values of y and year.
echo "Enter Year:" # So for example if 2016 is entered
read y This would make the value of y 2016
year=$y Here I understand it to mean the variable y = the variable year
y=$(( $y % 4 )) This is where I start getting confused. Why are we defining what the variable y equals again?
if [ $y -eq 0 ]
then
echo "$year is Leap Year!"
else
echo "$year is not a Leap Year!"
fi
I understand what the gist of it is. It basically tests to see if the year is equally divisible by 4 if it is it is leap year, if it isn't it is not a leap year.
I'm working on a little script that along with a few other things will calculate if the year is a leap year if the month is Feb.
I found the following script online and I'm trying to incorporate it in to my script.
However I cannot understand the values of y and year.
echo "Enter Year:" # So for example if 2016 is entered
read y This would make the value of y 2016
year=$y Here I understand it to mean the variable y = the variable year
y=$(( $y % 4 )) This is where I start getting confused. Why are we defining what the variable y equals again?
if [ $y -eq 0 ]
then
echo "$year is Leap Year!"
else
echo "$year is not a Leap Year!"
fi
I understand what the gist of it is. It basically tests to see if the year is equally divisible by 4 if it is it is leap year, if it isn't it is not a leap year.