Finding Number Of Days in a Month

Syntax : cal `MONTH` `YEAR` | egrep -v '[A-Za-z]' | wc -w

E.g : cal 2 2008 | egrep -v '[A-Za-z]' | wc -w


Syntax : cal `MONTH` `date +%Y` | egrep -v '[A-Za-z]' | wc -w

E.g : cal 1 `date +%Y` | egrep -v '[A-Za-z]' | wc -w