Look at the man pages for "date" to see the myriad ways of expressing the date. You can use this command in a script like this. Say you want to run something and save the output to a file with today's date as the extention you could do this:
cat foo > foobar.`date +%j` those are backticks not single quotes, and there is a space between date and the +%j
This would put the output of your command in a file called
foobar.162 d3funct
zimmer.jon@cfwy.com
The software required `Windows 95 or better', so I installed Linux.