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Full Discussion: Perl: Sorting a hash value that is a list.
Top Forums Shell Programming and Scripting Perl: Sorting a hash value that is a list. Post 302603107 by balajesuri on Wednesday 29th of February 2012 04:59:26 AM
Old 02-29-2012
Code:
#!/usr/bin/perl
use strict;
use warnings;

my ($gid, $grp, $host, $group, $userid);
my %table;

open FILE, "< /path/to/usrgrps.txt";
foreach (<FILE>) {
    chomp;
    ($host, $grp, $gid, $userid) = split /:/;
    $group = "$grp:$gid";
    if (length ($userid) != 0) {
        (defined $table{$group} && $table{$group} =~ /$_/) ? next : ($table{$group}.="$_,") foreach (split /,/, $userid);
    }
    else {
        $table{$group} = "";
    }
}
close FILE;

foreach (sort keys %table) {
    $table{$_} =~ s/,$//;
    print "$_:$table{$_}\n";
}

Last edited by balajesuri; 02-29-2012 at 06:06 AM..
This User Gave Thanks to balajesuri For This Post:
g_string
 

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LEARN ABOUT DEBIAN

datetime::format::builder::parser::strptime

DateTime::Format::Builder::Parser::Strptime(3pm)	User Contributed Perl Documentation	  DateTime::Format::Builder::Parser::Strptime(3pm)

NAME

       DateTime::Format::Builder::Parser::Strptime - strptime based date parsing

SYNOPSIS

	  my $parser = DateTime::Format::Builder->create_parser(
	       strptime => '%e/%b/%Y:%H:%M:%S %z',
	  );

SPECIFICATION

       o   strptime takes as its argument a strptime string.  See DateTime::Format::Strptime for more information on valid patterns.

THANKS

       See the main module's section.

SUPPORT

       Support for this module is provided via the datetime@perl.org email list. See http://lists.perl.org/ for more details.

       Alternatively, log them via the CPAN RT system via the web or email:

	   http://perl.dellah.org/rt/dtbuilder
	   bug-datetime-format-builder@rt.cpan.org

       This makes it much easier for me to track things and thus means your problem is less likely to be neglected.

LICENCE AND COPYRIGHT

       Copyright X Iain Truskett, 2003. All rights reserved.

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.000 or,
       at your option, any later version of Perl 5 you may have available.

       The full text of the licences can be found in the Artistic and COPYING files included with this module, or in perlartistic and perlgpl as
       supplied with Perl 5.8.1 and later.

AUTHOR

       Iain Truskett <spoon@cpan.org>

SEE ALSO

       "datetime@perl.org" mailing list.

       http://datetime.perl.org/

       perl, DateTime, DateTime::Format::Builder

perl v5.10.1							    2010-03-14			  DateTime::Format::Builder::Parser::Strptime(3pm)
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