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From: lorenzo@prince.homelinux.org (Lorenzo Prince)
Subject: Re: timer
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Thus spake Laura Eaves:
# why not just say
# 
# sleep "$1"
# 
# instead of using a for loop? Much more efficient.

That works, but it won't show the time as it counts down.  Although it will allow
you to set whether you want to count in seconds, minutes, hours or days.

PRINCE