Re: Script to strip lines from files

In article <Xns9742C1E2EF074idontwantemail@xxxxxxxxxxxxxxx>, Christian Hansen
wrote:
> I would apreciate som help making a script that be run from cron and can
> strip lines from files in the work dir.
>
> I want the files to only be able to have a certain number of lines (say
> five) that start with "IP" . If the file has more I would like the script
> to strip the first instance of "IP" until the file only contains five.

Quick and dirty:

for file in *
do
lines="$(grep ^IP $file | tail -5)"
echo "$lines" > $file
done

That will work in ksh or bash (probably any POSIX shell)...

Kevin

--
Unix Guy Consulting, LLC
Unix and Linux Automation, Shell, Perl and CGI scripting
http://www.unix-guy.com
.

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