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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findrule

FINDRULE(1p)						User Contributed Perl Documentation					      FINDRULE(1p)

NAME

       findrule - command line wrapper to File::Find::Rule

USAGE

	 findrule [path...] [expression]

DESCRIPTION

       "findrule" mostly borrows the interface from GNU find(1) to provide a command-line interface onto the File::Find::Rule heirarchy of
       modules.

       The syntax for expressions is the rule name, preceded by a dash, followed by an optional argument.  If the argument is an opening
       parenthesis it is taken as a list of arguments, terminated by a closing parenthesis.

       Some examples:

	find -file -name ( foo bar )

       files named "foo" or "bar", below the current directory.

	find -file -name foo -bar

       files named "foo", that have pubs (for this is what our ficticious "bar" clause specifies), below the current directory.

	find -file -name ( -bar )

       files named "-bar", below the current directory.  In this case if we'd have omitted the parenthesis it would have parsed as a call to name
       with no arguments, followed by a call to -bar.

   Supported switches
       I'm very slack.	Please consult the File::Find::Rule manpage for now, and prepend - to the commands that you want.

   Extra bonus switches
       findrule automatically loads all of your installed File::Find::Rule::* extension modules, so check the documentation to see what those
       would be.

AUTHOR

       Richard Clamp <richardc@unixbeard.net> from a suggestion by Tatsuhiko Miyagawa

COPYRIGHT

       Copyright (C) 2002 Richard Clamp.  All Rights Reserved.

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

SEE ALSO

       File::Find::Rule

perl v5.12.4							    2011-09-19							      FINDRULE(1p)