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Full Discussion: Perl Array / pattern match large CPU usage
Top Forums Shell Programming and Scripting Perl Array / pattern match large CPU usage Post 302359851 by radoulov on Wednesday 7th of October 2009 02:19:12 PM
Old 10-07-2009
Like this?

Code:
#! /usr/bin/env perl

use warnings;
use strict;

my %f1;

die "usage: $0 <file1> <file2>\n" unless @ARGV == 2;

my ( $f1, $f2 ) = @ARGV;

open my $F1, '<', $f1 or die "open $f1: $!\n";

$f1{ (split)[0] } = undef while <$F1>;

close $F1 or warn "close $f1: $!\n";

open my $F2, '<', $f2 or die "open $f2: $!\n";

while (<$F2>) {
    my @fields = split ',';
    map { $fields[4] =~ /^$_/ and print $_, " ", $fields[-1] } keys %f1;
}

close $F2 or warn "close $f2: $!\n";

 

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LEARN ABOUT CENTOS

perl::critic::command

Perl::Critic::Command(3)				User Contributed Perl Documentation				  Perl::Critic::Command(3)

NAME

       Perl::Critic::Command - Guts of perlcritic.

SYNOPSIS

	   use Perl::Critic::Command qw< run >;

	   local @ARGV = qw< --statistics-only lib bin >;
	   run();

DESCRIPTION

       This is the implementation of the perlcritic command.  You can use this to run the command without going through a command interpreter.

INTERFACE SUPPORT

       This is considered to be a public class.  However, its interface is experimental, and will likely change.

IMPORTABLE SUBROUTINES

       "run()"
	   Does the equivalent of the perlcritic command.  Unfortunately, at present, this doesn't take any parameters but uses @ARGV to get its
	   input instead.  Count on this changing; don't count on the current interface.

TO DO

       Make "run()" take parameters.  The equivalent of @ARGV should be passed as a reference.

       Turn this into an object.

AUTHOR

       Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT

       Copyright (c) 2005-2011 Imaginative Software Systems.  All rights reserved.

       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 v5.16.3							    2014-06-09						  Perl::Critic::Command(3)
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