Date
From MohidWiki
date is a linux command returning the present date and time. In a dos box, current date and time are stored in environment variables.
Linux
> date > Thu May 17 13:52:35 WEST 2007
> date +%G%m%d > 20070517
> date +%k:%M:%S > 13:56:27
DOS
$ echo %DATE% $ 17-05-2007
$ echo %TIME% $ 13:58:38,33