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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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LEARN ABOUT DEBIAN

graphics::primitive::insets

Graphics::Primitive::Insets(3pm)			User Contributed Perl Documentation			  Graphics::Primitive::Insets(3pm)

NAME

       Graphics::Primitive::Insets - Space between things

DESCRIPTION

       Graphics::Primitive::Insets represents the amount of space that surrounds something.  This object can be used to represent either padding
       or margins (in the CSS sense, one being inside the bounding box, the other being outside)

SYNOPSIS

	 use Graphics::Primitive::Insets;

	 my $insets = Graphics::Primitive::Insets->new({
	   top	   => 5,
	   bottom  => 5,
	   left    => 5,
	   right   => 5
	 });

METHODS

   Constructor
       new Creates a new Graphics::Primitive::Insets.

   Instance Methods
       as_array
	   Return these insets as an array in the form of top, right, bottom and left.

       bottom
	   Set/Get the inset from the bottom.

       equal_to
	   Determine if these Insets are equal to another.

       left
	   Set/Get the inset from the left.

       right
	   Set/Get the inset from the right.

       top Set/Get the inset from the top.

       zero
	   Sets all the insets (top, left, bottom, right) to 0.

AUTHOR

       Cory Watson, "<gphat@cpan.org>"

SEE ALSO

       perl(1)

COPYRIGHT &; LICENSE
       Copyright 2008-2010 by Cory G Watson.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.12.3							    2010-08-21					  Graphics::Primitive::Insets(3pm)