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Full Discussion: small doubt in awk
Top Forums UNIX for Dummies Questions & Answers small doubt in awk Post 302426998 by vidyadhar85 on Thursday 3rd of June 2010 12:22:33 PM
Old 06-03-2010
Bug small doubt in awk

Hi Guys,

I have a small problem with awk.

I want to search { and } at a particular position in a string using awk.

I tried

Code:
echo "hello{hi" | awk '{if(substr($0,6,1)=="{"){print "TRUE"}}'

but no success Smilie

i know it can be done in many ways and i know them also.. but my question is how can we suppress "{" in awk??

Last edited by vidyadhar85; 06-03-2010 at 01:22 PM.. Reason: typo
 

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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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