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Top Forums Shell Programming and Scripting Conditional grep command to search entire file Post 302697447 by Corona688 on Thursday 6th of September 2012 08:52:32 PM
Old 09-06-2012
grep is not conditional. It matches lines. It's not a language...

awk is a language, and can do things conditionally. You can even tell it to read the same file twice... On the first pass, save the ID's. On the second pass, fill in missing ones...

Code:
awk 'NR==FNR && !($5 ~ /none/) {
        A[$12]=$5 # Save ID and key for later
        next # Skip to next line
}

($5 ~ /none/) && ($12 in A) { $5=A[$12] } 1' logfile logfile > output

 

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Git::Repository::Plugin::Log(3pm)			User Contributed Perl Documentation			 Git::Repository::Plugin::Log(3pm)

NAME
Git::Repository::Plugin::Log - Add a log() method to Git::Repository SYNOPSIS
# load the plugin use Git::Repository 'Log'; my $r = Git::Repository->new(); # get all log objects my @logs = $r->log(qw( --since=yesterday )); # get an iterator my $iter = $r->log(qw( --since=yesterday )); while ( my $log = $iter->next() ) { ...; } DESCRIPTION
This module adds a new method to "Git::Repository". METHOD
log( @args ) Run "git log" with the given arguments. In scalar context, returns a "Git::Repository::Log::Iterator" object, which can return "Git::Repository::Log" objects on demand. In list context, returns the full list "Git::Repository::Log" objects. Note that this can be very memory-intensive. See Git::Repository::Log::Iterator's documentation for details about how parameters are handled. AUTHOR
Philippe Bruhat (BooK), "<book at cpan.org>" ACKNOWLEDGEMENTS
Many thanks to Aristotle Pagaltzis who requested a "log()" method in the first place, and for very interesting conversations on the topic. SEE ALSO
Git::Repository::Plugin, Git::Repository::Log::Iterator, Git::Repository::Log. COPYRIGHT
Copyright 2010 Philippe Bruhat (BooK). LICENSE
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2011-12-28 Git::Repository::Plugin::Log(3pm)
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