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Full Discussion: delete lines in a file
Top Forums UNIX for Dummies Questions & Answers delete lines in a file Post 302109541 by anbu23 on Tuesday 6th of March 2007 01:35:39 PM
Old 03-06-2007
Quote:
Originally Posted by suri
can u please tell anbu wat does this code do...
i din get the logic...
many thanx in advance
Code:
sed -n "/^Grid-ref=/{N;p;}" file

If a line starts with Grid-ref then read the next line from file and append it to pattern space and then print contents in the pattern space.
 

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Graph::Easy::Layout::Grid(3pm)				User Contributed Perl Documentation			    Graph::Easy::Layout::Grid(3pm)

NAME
Graph::Easy::Layout::Grid - Grid management and size calculation SYNOPSIS
use Graph::Easy; my $graph = Graph::Easy->new(); my $bonn = Graph::Easy::Node->new( name => 'Bonn', ); my $berlin = Graph::Easy::Node->new( name => 'Berlin', ); $graph->add_edge ($bonn, $berlin); $graph->layout(); print $graph->as_ascii( ); # prints: # +------+ +--------+ # | Bonn | --> | Berlin | # +------+ +--------+ DESCRIPTION
"Graph::Easy::Layout::Grid" contains routines that calculate cell sizes on the grid, which is necessary for ASCII, boxart and SVG output. Used automatically by Graph::Easy. EXPORT
Exports nothing. SEE ALSO
Graph::Easy. METHODS
This module injects the following methods into Graph::Easy: _prepare_layout() my ($rows,$cols,$max_x,$max_y, @V) = $graph->_prepare_layout(); Returns two hashes ($rows and $cols), containing the columns and rows of the layout with their nec. sizes (in chars) plus the maximum framebuffer size nec. for this layout. Also returns reference of a list of all cells to be rendered. AUTHOR
Copyright (C) 2004 - 2006 by Tels <http://bloodgate.com>. See the LICENSE file for information. perl v5.14.2 2011-12-23 Graph::Easy::Layout::Grid(3pm)
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