[Discuss] file bits

[p.willis at telus.net]

Hello,

Is there a way to tag a file with a mode bit to
tell the operating system that the file has an
expiry date? The file would then be automatically
deleted by the OS once the expiry date is reached.

Is there a program/command that will allow this to be
done with files?

I guess I could just make a script that uses crontab
to rid specific files by date, but I wonder if there 
is already something done along these lines.

Thanks

Peter