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Full Discussion: Using awk command in Perl
Top Forums Shell Programming and Scripting Using awk command in Perl Post 302968110 by hi.villinda on Friday 4th of March 2016 01:28:56 AM
Old 03-04-2016
Using awk command in Perl

Hi All,

I got some requirement of using Awk in perl subroutine
One of the variable in my perl script holds below type of data.

Quote:
"2787000""419000""3206000"
I want to split this value as quotes seperated and get the second last field i.e., 3206000 from above.

I used below code in my perl sub-routine, but it is not working as expected.
Code:
 
  
 my $num = system(" awk -F'\"' '{print $4}' $string "); #$string holds the above quoted values.

Any idea whether anything wrong with this way of invoking awk in perl?

Regards,
Venkat
 

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English(3pm)						 Perl Programmers Reference Guide					      English(3pm)

NAME
English - use nice English (or awk) names for ugly punctuation variables SYNOPSIS
use English; use English qw( -no_match_vars ) ; # Avoids regex performance penalty # in perl 5.16 and earlier ... if ($ERRNO =~ /denied/) { ... } DESCRIPTION
This module provides aliases for the built-in variables whose names no one seems to like to read. Variables with side-effects which get triggered just by accessing them (like $0) will still be affected. For those variables that have an awk version, both long and short English alternatives are provided. For example, the $/ variable can be referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module. See perlvar for a complete list of these. PERFORMANCE
NOTE: This was fixed in perl 5.20. Mentioning these three variables no longer makes a speed difference. This section still applies if your code is to run on perl 5.18 or earlier. This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details. If performance matters in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing use English qw( -no_match_vars ) ; . It is especially important to do this in modules to avoid penalizing all applications which use them. perl v5.18.2 2014-01-06 English(3pm)
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