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From: harrison@necssd.NEC.COM (Mark Harrison)
Newsgroups: comp.unix.questions
Subject: Re: What's wrong with this Bourne shell script?
Message-ID: <416@necssd.NEC.COM>
Date: 15 Aug 90 18:36:10 GMT
References: <1990Aug6.172225.20319@iwarp.intel.com> <850@jonlab.UUCP> <FPB.90Aug13191108@ittc.ittc.wec.com>
Organization: NEC America Inc. SSD, Irving, TX
Lines: 26

In article <FPB.90Aug13191108@ittc.ittc.wec.com>,
   fpb@ittc.wec.com (Frank P. Bresz) writes:
> 	Where is Jon's addcol.  I tried to write one a while back and kept
> screwing it up.  I would like to see a working version.

Here is a simple one in awk.  Replace $4 with your column number.

		awk '{ tot += $4} END{print tot}'
			      ^^
If you put this into a shell script called addcol, you can say

		awk '{ tot += $'$1'} END{print tot}'

and invoke it by
		addcol 4

Example:  How many bytes in my files?

		ls -l c* | awk '{ tot += $4} END{print tot}'
		ls -l c* | addcol 4

Hope this helps!
-- 
Mark Harrison             harrison@necssd.NEC.COM
(214)518-5050             {necntc, cs.utexas.edu}!necssd!harrison
standard disclaimers apply...