epoch time or calendar based date functions with standard UNIX co mmands

From: Lumpkin, Buddy (Buddy.Lumpkin@nordstrom.com)
Date: Wed Apr 10 2002 - 20:20:41 EDT

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Hello All,

I have always used perl when I needed to do any kind of date math. After grabing the number of seconds since the epoch, it's simple to subtract or add ($days * 60 * 60 * 24).

Is there a UNIX command that will get the number of days since the epoch, or is there a command that will help with date arithmetic?

So far I know of gawk and perl (and obviously C) to do such things.

Thanks in advance,

--Buddy
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