delete lines between patterns Post: 302319998

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Top Forums Shell Programming and Scripting delete lines between patterns Post 302319998 by shamushamu on Tuesday 26th of May 2009 08:33:43 PM

05-26-2009

Registered User

delete lines between patterns

Hi, I've searched in this forum all day long but was not able to find enough codes to help me do a task. The only code that I can come up with is this:

sed '/[0-9] [0-9] /,/[0-9] [0-9] /{//p;d;}' inputfile > outputfile

I would like to sed/awk/grep a file for two patterns and then delete the lines between those patterns. Please see the inputfile below. This is just a small portion of a lengthy file. Everything in bold should be deleted.

In this case, I would like to search for the first pattern [0 0 2] and the last pattern [2433 2433 2], then delete every line between these patterns but keeping the line [ANT_2] above the line [2433 2433 2]. Similarly, I would like to search for the first pattern [0 0 4] and the last pattern [1 1 2], then delete every line between these patterns but keeping the line [ANT_6] above the line [1 1 2]. The number of lines between these pattens can vary. The only thing that I can see that is constant is the [0 0 ].

Any help or suggestion would be greatly appreciated.

inputfile
--------
ANT_1
0 0 2 Jan 14 10:11:44 2009
Rule File Pathname: /home/la/_drc_
ply to gate area ratio > 500
ANT_2
2433 2433 2 Jan 14 10:13:46 2009
Rule File Pathname: /home/la/_drc_
mt1 to gate area ratio > 40
p 1 44
-2109300 -10645700
-2095600 -10645700
-2095600 -10649700
-2088500 -10649700
-2088500 -10655700
-2071900 -10655700
ANT_3
0 0 2 Jan 14 10:13:59 2009
Rule File Pathname: /home/la/_drc_
mt2 diff gate inputs.
ANT_4
0 0 2 Jan 14 10:14:01 2009
Rule File Pathname: /home/la/_drc_
gold diff gate inputs.
ANT_5
0 0 4 Jan 14 10:14:01 2009
Rule File Pathname: /home/la/_drc_
gold diff gate inputs.
ANT_6
1 1 2 Jan 14 10:14:01 2009
Rule File Pathname: /home/la/_drc_
gold diff gate inputs.
NET_AREA_RATIO_RDBS
0 0 3 Jan 14 10:14:01 2009
ANT2.OUT
ANT3.OUT
ANT4.OUT

Desired outputfile
----------------
ANT_2
2433 2433 2 Jan 14 10:13:46 2009
Rule File Pathname: /home/la/_drc_
mt1 to gate area ratio > 40
p 1 44
-2109300 -10645700
-2095600 -10645700
-2095600 -10649700
-2088500 -10649700
-2088500 -10655700
-2071900 -10655700
ANT_6
1 1 2 Jan 14 10:14:01 2009
Rule File Pathname: /home/la/_drc_
gold diff gate inputs.

shamushamu

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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 v5.16.2							    2011-09-19					   File::Find::Rule::Procedural(3)