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Top Forums UNIX for Beginners Questions & Answers awk Replace Multiple patterns within a list_file with One in target_file Post 303009764 by mpvphd on Tuesday 19th of December 2017 01:48:32 PM
Old 12-19-2017
Linux awk Replace Multiple patterns within a list_file with One in target_file

I'm facing a problem

1) I got a list_file intended to be used for inlace replacement like this

Code:
  Replacement pattern ; Matching patterns

    EXTRACT ___________________
    toto ; tutu | tata | tonton  | titi 
    bobo ; bibi | baba | bubu | bebe 
    etc. 14000 lines !!!
    _____________________________



2) I got a target file in witch I want to replace thoses paterns

Code:
EXTRACT INPUT _______________
    hello my name is bob and I am a Titi and I like bubu
    _____________________________


I want it to become

Code:
EXTRACT OUTPUT ______________
    hello my name is bob and I am a toto and I like bobo
    _____________________________

Actually I am using awk to try to achieve this with this command :

Code:
   awk -F';' 'NR==FNR{A[$1]=$2; next} IGNORECASE = 1 {for(i in A) gsub(/A[i]/,i)}1' simplifier_FR.txt text.txt

Sadly awk doesn't seems to understand the pipe « | » character as a OR indicator ... I have also tried to achieve this with sed but this option goes very slowly aven if it works Smilie

does anyone have a better idea ?
Thanks
M
 

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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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