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Full Discussion: How to compare 2 files & get only few columns based on a condition related to both files?
Top Forums Shell Programming and Scripting How to compare 2 files & get only few columns based on a condition related to both files? Post 302379210 by reva on Wednesday 9th of December 2009 11:57:19 PM
Old 12-10-2009
Bug
I tried to do like this already..It deletes my other data..
for example
a.dat:
HTML Code:
2009 10 29 17 44 31.00  70.66  36.40  286  24    76
2009 11  7 20  9  4.00  86.22  29.29  172  43  -105
2009 11 10  2 48 46.00  91.86   8.08  123  78   169
b.dat:
HTML Code:
  PDE-Q 2009 10 29 17  0 38.84  27.2600  91.3800  26.0   0 5.20   0 0.00 0.00  0.00   0  0.00  5.20   0   NULL
 PDE-Q 2009 10 29 17 44 31.75  36.4300  70.7300 205.0   0 6.20   0 0.00 0.00  0.00   0  0.00  6.20   0   NULL
 PDE-Q 2009 11  7 20  8 46.72  29.5200  86.0600   7.0   0 5.60   0 0.00 0.00  0.00   0  0.00  5.60   0   NULL
 PDE-Q 2009 11 10  2 48 46.87   8.0800  91.8900  23.0   0 6.00   0 0.00 0.00  0.00   0  0.00  6.00   0   NULL
The correct output i should get is
c.dat:
HTML Code:
36.4300  70.7300   6.20 286 24 76
29.5200  86.0600  5.60 172  43  -105
8.0800 91.8900 6.00 123 78 169
but if i use your code i get output for such lines as
HTML Code:
36.4300 70.7300 6.20 286 24 76
8.0800 91.8900 6.00 123 78 169
&
if i use your first code which is thier i get output as
HTML Code:
27.2600 91.3800 5.20 286 24 76
36.4300 70.7300 6.20 286 24 76
29.5200 86.0600 5.60 172 43 -105
8.0800 91.8900 6.00 123 78 169
Smilie
 

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LEARN ABOUT DEBIAN

html::treebuilder::libxml

HTML::TreeBuilder::LibXML(3pm)				User Contributed Perl Documentation			    HTML::TreeBuilder::LibXML(3pm)

NAME

       HTML::TreeBuilder::LibXML - HTML::TreeBuilder and XPath compatible interface with libxml

SYNOPSIS

	   use HTML::TreeBuilder::LibXML;

	   my $tree = HTML::TreeBuilder::LibXML->new;
	   $tree->parse($html);
	   $tree->eof;

	   # $tree and $node compatible to HTML::Element
	   my @nodes = $tree->findvalue($xpath);
	   for my $node (@nodes) {
	       print $node->tag;
	       my %attr = $node->all_external_attr;
	   }

	   HTML::TreeBuilder::LibXML->replace_original(); # replace HTML::TreeBuilder::XPath->new

DESCRIPTION

       HTML::TreeBuilder::XPath is libxml based compatible interface to HTML::TreeBuilder, which could be slow for a large document.

       HTML::TreeBuilder::LibXML is drop-in-replacement for HTML::TreeBuilder::XPath.

       This module doesn't implement all of HTML::TreeBuilder and HTML::Element APIs, but enough methods are defined so modules like Web::Scraper
       work.

BENCHMARK

       This is a benchmark result by tools/benchmark.pl

	       Web::Scraper: 0.26
	       HTML::TreeBuilder::XPath: 0.09
	       HTML::TreeBuilder::LibXML: 0.01_01

			    Rate  no_libxml use_libxml
	       no_libxml  5.45/s	 --	  -94%
	       use_libxml 94.3/s      1632%	    --

AUTHOR

       Tokuhiro Matsuno <tokuhirom  slkjfd gmail.com>

       Tatsuhiko Miyagawa <miyagawa@cpan.org>

       Masahiro Chiba

THANKS TO

       woremacx++ http://d.hatena.ne.jp/woremacx/20080202/1201927162

       id:dailyflower

SEE ALSO

       HTML::TreeBuilder, HTML::TreeBuilder::XPath

LICENSE

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-04-02					    HTML::TreeBuilder::LibXML(3pm)
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