help with unix commands

[David Williams]

Paul

I don't think you can't get the status without getting into convoluted
saving in the script and accessing in the quick, because the command is
spawned at a lower unix shell level.

But if you just want to decide whether you found abc or not then using
Ole's method should work :


>let cmd_str = "grep abc filexx > /dev/null 2>&1"
>run command cmd_str nowarn on error continue if commandok
>  then let abcexists = "true"
>  else let abcexists = "false"

(We tend to execute scripts in run command rather than direct command
line, so if I've got syntax problems above, apologies. I've added the
2<&1 to your grep to prevent error messages showing).


David

-----Original Message-----
From:
powerh-l-bounces+david_williams=westbury-homes.co.uk at lists.sowder.com
[mailto:powerh-l-bounces+david_williams=westbury-homes.co.uk at lists.sowde
r.com] On Behalf Of PAUL DIACONESCU
Sent: 25 January 2006 15:24
To: powerh-l at lists.sowder.com
Subject: RE: help with unix commands

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 $HOME/filename" ; change to point to correct file
>run command cmd_str nowarn on error continue
>if commandok
>  then let fileexists = "1"
>  else let fileexists = "0"
>
>... otherwise - sorry for the wasted bandwidth.
>
>Mange hilsner / With kind regards
>
>Ole Hansen
>
>===========================================================
>E-mail: oh at scanconsult.dk         Cell Phone: +45 4040 1150
>===========================================================
>ScanConsult IT-Partners ApS         Voice   : +45 7734 7474
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>
>-----Original Message-----
>From: powerh-l-bounces+oh=scanconsult.dk at lists.sowder.com
>[mailto:powerh-l-bounces+oh=scanconsult.dk at lists.sowder.com] On Behalf
Of
>PAUL DIACONESCU
>Sent: 25. januar 2006 15:52
>To: powerh-l at lists.sowder.com
>Subject: help with unix commands
>
>quick, on hp unix.
>
>I try to do a <RUN COMMAND "grep 'abc' filexx > /dev/null>
>
>In unix this command exits with a status ($?)  = 0, 1 or 2.
>
>How can I retrieve this status ($?) in my quick screen ?
>
>paul diaconescu
>
>
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