08-12-2009
Finding line with highest number in a file
Hi All,
My file looks some thing like this,
File 1: -
A 10
B 30
C 5
D 25
E 72
F 23
now my requirement is to find the line with highest number in it, i;e the result should be
E 72
Thanks in Advance
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LEARN ABOUT CENTOS
file::find::rule::procedural
File::Find::Rule::Procedural(3) User Contributed Perl Documentation File::Find::Rule::Procedural(3)
NAME
File::Find::Rule::Procedural - File::Find::Rule's procedural interface
SYNOPSIS
use File::Find::Rule;
# find all .pm files, procedurally
my @files = find(file => name => '*.pm', in => @INC);
DESCRIPTION
In addition to the regular object-oriented interface, File::Find::Rule provides two subroutines for you to use.
"find( @clauses )"
"rule( @clauses )"
"find" and "rule" can be used to invoke any methods available to the OO version. "rule" is a synonym for "find"
Passing more than one value to a clause is done with an anonymous array:
my $finder = find( name => [ '*.mp3', '*.ogg' ] );
"find" and "rule" both return a File::Find::Rule instance, unless one of the arguments is "in", in which case it returns a list of things
that match the rule.
my @files = find( name => [ '*.mp3', '*.ogg' ], in => $ENV{HOME} );
Please note that "in" will be the last clause evaluated, and so this code will search for mp3s regardless of size.
my @files = find( name => '*.mp3', in => $ENV{HOME}, size => '<2k' );
^
|
Clause processing stopped here ------/
It is also possible to invert a single rule by prefixing it with "!" like so:
# large files that aren't videos
my @files = find( file =>
'!name' => [ '*.avi', '*.mov' ],
size => '>20M',
in => $ENV{HOME} );
AUTHOR
Richard Clamp <richardc@unixbeard.net>
COPYRIGHT
Copyright (C) 2003 Richard Clamp. All Rights Reserved.
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
SEE ALSO
File::Find::Rule
perl v5.16.3 2011-09-19 File::Find::Rule::Procedural(3)