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Cannot execute Unix command in a simple perl script

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Top Forums Shell Programming and Scripting Cannot execute Unix command in a simple perl script
# 8  
Old 09-23-2011
I've already answered that, twice, and did so before suggesting any other solutions. I have no idea if my suggestion worked or not, and having no way to test it here myself, I must wait for you to do as I asked to find out.

To spell it out keystroke by keystroke:
Code:
$FREE = `vgdisplay $A | grep -i 'Free PE' | awk '{print \$NF}'`;

I should note you're running sh 4 separate times, awk twice, and perl once; it's a bit of a stretch to call your script 'perl'. You're also running 14 processes when all you needed was 2. If you really want to do it in perl, you should be processing all the output in perl.
Last edited by Corona688; 09-23-2011 at 05:23 PM..
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asp-perl

ASP-PERL(1p)						User Contributed Perl Documentation					      ASP-PERL(1p)

NAME

       asp-perl - Apache::ASP CGI and command line script processor

SYNOPSIS

       asp-perl [-hsdb] [-f asp.conf] [-o directory] file1 @arguments file2 @arguments ...

	   -h  Help you are getting now!
	   -f  Specify an alternate configuration file other than ./asp.conf
	   -s  Setup $Session and $Application state for script.
	   -d  Set to debug code upon errors.
	   -b  Only return body of document, no headers.
	   -o  Output directory, writes to files there instead of STDOUT
	   -p  GlobalPackage config, what perl package are the scripts compiled in.

DESCRIPTION

       This program will run Apache::ASP scripts from the command line.  Each file that is specified will be run, and the $Request->QueryString()
       and $Request->Form() data will be initialized by the @arguments following the script file name.

       The @arguments will be written as space separated words, and will be initialized as an associate array where %arguments = @arguments.  As
       an example:

	asp-perl file.asp key1 value1 key2 value2

       would be similar to calling the file.asp in a web environment like

	/file.asp?key1=value1&key2=value2

       The asp.conf script will be read from the current directory for parameters that would be set with PerlSetVar normally under mod_perl.  For
       more information on how to configure the asp.conf file, please see < http://www.apache-asp.org/cgi.html >

SEE ALSO

       perldoc Apache::ASP, and also http://www.apache-asp.org

COPYRIGHT

       Copyright 1998-2004 Joshua Chamas, Chamas Enterprises Inc.

       This program is distributed under the GPL.  Please see the LICENSE file in the Apache::ASP distribution for more information.

perl v5.14.2							    2011-08-15							      ASP-PERL(1p)