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Date: Thu, 14 Aug 2003 16:49:20 +0100
From: Jez Hancock <jez.hancock@munk.nu>
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Subject: Re: Using bc in bash script
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On Thu, Aug 14, 2003 at 10:46:45AM -0500, Charles Howse wrote:
> Hello List,
> 
> I've migrated from Redhat Linux 9 to FreeBSD 4.8-RELEASE, character mode
> - no gui.
> 
> I'm trying to calculate the number of seconds between $start_time and
> $end_time in a bash script.
> 
> Start_time=`date +%s` # Seconds past midnight at start of script
> [ do lots of stuff ]
> End_time=`date +%s`   # Seconds past midnight at end of script
> 
> Then I want to: et=`bc $end_time - $start_time` to get the number of
> seconds or fractions of seconds elapsed.
How about:

et=`echo "$end_time - $start_time" | bc`

-- 
Jez

http://www.munk.nu/