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Full Discussion: Using multiple gsub() function under a loop in awk
Top Forums Shell Programming and Scripting Using multiple gsub() function under a loop in awk Post 302894539 by useless79 on Wednesday 26th of March 2014 05:00:08 AM
Old 03-26-2014
Using multiple gsub() function under a loop in awk
Hi ALL,

I want to replace string occurrence in my file "Config" using a external file named "Mapping" using awk.

$cat Config
! Configuration file for RAVI
! Configuration file for RACHANA
! Configuration file for BALLU


$cat Mapping
ravi:ram
rachana:shyam
ballu:hameed

The expected output after running the awk script should be

! Configuration file for RAM
! Configuration file for SHYAM
! Configuration file for HAMMEED

For the out expected out I used awk as below.

Code:
$ awk ' {FS=":"} FNR==NR { array[$1]=$2; next  }  {FS=" "} FNR!=NR 
{ for (i in array)  IGNORECASE = 1 gsub("Configuration file for "i, "Configuration file for " array[i])    }1
'   Mapping   Config

And the output is coming as expected.
But when I use two gsub() functions (other one for an additional replacement)
one with IGNORECASE = 0 and other with IGNORECASE = 1. my second gsub("Configuration file for "i, "Configuration file for " array[i]) function is not working as expected.

Code:
$ awk ' {FS=":"} FNR==NR { array[$1]=$2; next  }  {FS=" "} FNR!=NR 
{ for (i in array)  gsub("^"i, array[i])   IGNORECASE = 1 gsub("Configuration file for "i, "Configuration file for " array[i])  }1
'   Mapping   Config


Can any one help me to know how to use two gsub() function under a for loop with first gsub() case sensitive and second one case insensitive search. Can any one help me improving the above code ?

Thanks in advance.....
 

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LEARN ABOUT DEBIAN

perl::critic::exception::configuration::option

Perl::Critic::Exception::Configuration::Option(3pm)	User Contributed Perl Documentation    Perl::Critic::Exception::Configuration::Option(3pm)

NAME

       Perl::Critic::Exception::Configuration::Option - A problem with an option in the Perl::Critic configuration.

DESCRIPTION

       A representation of a problem found with an option in the configuration of Perl::Critic, whether from a .perlcriticrc, another profile
       file, or command line.

       This is an abstract class.  It should never be instantiated.

INTERFACE SUPPORT

       This is considered to be a public class.  Any changes to its interface will go through a deprecation cycle.

METHODS

       "option_name()"
	   The name of the option that was found to be in error.

       "option_value()"
	   The value of the option that was found to be in error.

       "message_suffix()"
	   Any text that should be applied to end of the standard message for this kind of exception.

       "message()"
       "error()"
	   Overridden to call "full_message()".  I.e. any message string in the superclass is ignored.

       "full_message()"
	   Overridden to turn it into an abstract method to force subclasses to implement it.

SEE ALSO

       Perl::Critic::Exception::Configuration::Option::Global Perl::Critic::Exception::Configuration::Option::Policy

AUTHOR

       Elliot Shank <perl@galumph.com>

COPYRIGHT

       Copyright (c) 2007-2011 Elliot Shank.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.  The full text of this license
       can be found in the LICENSE file included with this module.

perl v5.14.2							    2012-06-07		       Perl::Critic::Exception::Configuration::Option(3pm)
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