help with unix commands
PAUL DIACONESCU
paul_diaconescu at hotmail.com
Wed Jan 25 09:23:54 CST 2006
Thank-you for your answer.
I do not want to check for the existence of a file.
I want to check for the existence of one or more lines containing 'abc' on a
particular file
The 'grep' command exits with status = 0 if any lines match, 1 if not and 2
for erreors.
How can I retrieve the exit-status ($?) in the quick program ?
paul diaconescu
>From: "Ole Hansen, ScanConsult" <oh at scanconsult.dk>
>Reply-To: oh at scanconsult.dk
>To: "'PAUL DIACONESCU'" <paul_diaconescu at hotmail.com>,
><powerh-l at lists.sowder.com>
>Subject: RE: help with unix commands
>Date: Wed, 25 Jan 2006 16:11:46 +0100
>
>Paul,
>
>I can't answer your question, but I have a feeling that you wish to test
>for
>existence of af particular file. If my feeling is correct, here is what we
>do:
>
>let cmd_str = "ls $HOME/filename" ; change to point to correct file
>run command cmd_str nowarn on error continue
>if commandok
> then let fileexists = "1"
> else let fileexists = "0"
>
>... otherwise - sorry for the wasted bandwidth.
>
>Mange hilsner / With kind regards
>
>Ole Hansen
>
>===========================================================
>E-mail: oh at scanconsult.dk Cell Phone: +45 4040 1150
>===========================================================
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>
>-----Original Message-----
>From: powerh-l-bounces+oh=scanconsult.dk at lists.sowder.com
>[mailto:powerh-l-bounces+oh=scanconsult.dk at lists.sowder.com] On Behalf Of
>PAUL DIACONESCU
>Sent: 25. januar 2006 15:52
>To: powerh-l at lists.sowder.com
>Subject: help with unix commands
>
>quick, on hp unix.
>
>I try to do a <RUN COMMAND "grep 'abc' filexx > /dev/null>
>
>In unix this command exits with a status ($?) = 0, 1 or 2.
>
>How can I retrieve this status ($?) in my quick screen ?
>
>paul diaconescu
>
>
>--
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