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Full Discussion: Make sed ignore lines
Top Forums Shell Programming and Scripting Make sed ignore lines Post 78665 by bakunin on Thursday 21st of July 2005 10:33:24 AM
Old 07-21-2005
apply some change:

Code:
s/\(.*scripts\)/$BUSINESS_SCRIPTS/

apply the change only to those lines NOT starting with "rsh":

Code:
/^rsh/ ! {
            s/\(.*scripts\)/$BUSINESS_SCRIPTS/
           }

The first Regexp limits the execution of the substitution to those lines matched by it. The exclamation mark reverses this limitation. You can place multiple commands between the curly braces, they all will get executed only for those lines matched (or not not matched, respectively) by the first Regexp. Think of it as the sed-equivalent of "if ... then ..."

bakunin

bakunin
 

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LEARN ABOUT CENTOS

ppix::regexp::token::code

PPIx::Regexp::Token::Code(3)				User Contributed Perl Documentation			      PPIx::Regexp::Token::Code(3)

NAME

       PPIx::Regexp::Token::Code - Represent a chunk of Perl embedded in a regular expression.

SYNOPSIS

	use PPIx::Regexp::Dumper;
	PPIx::Regexp::Dumper->new(
	    'qr{(?{print "hello sailor
"})}smx')->print;

INHERITANCE

       "PPIx::Regexp::Token::Code" is a PPIx::Regexp::Token.

       "PPIx::Regexp::Token::Code" is the parent of PPIx::Regexp::Token::Interpolation.

DESCRIPTION

       This class represents a chunk of Perl code embedded in a regular expression. Specifically, it results from parsing things like

	(?{ code })
	(??{ code })

       or from the replacement side of an s///e. Technically, interpolations are also code, but they parse differently and therefore end up in a
       different token.

       This token may not appear inside a regex set (i.e. "(?[ ... ])". If found, it will become a "PPIx::Regexp::Token::Unknown".

METHODS

       This class provides the following public methods. Methods not documented here are private, and unsupported in the sense that the author
       reserves the right to change or remove them without notice.

   ppi
       This convenience method returns the PPI::Document representing the content. This document should be considered read only.

SUPPORT

       Support is by the author. Please file bug reports at <http://rt.cpan.org>, or in electronic mail to the author.

AUTHOR

       Thomas R. Wyant, III wyant at cpan dot org

COPYRIGHT AND LICENSE

       Copyright (C) 2009-2013 by Thomas R. Wyant, III

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl 5.10.0. For more details, see the full
       text of the licenses in the directory LICENSES.

       This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of
       merchantability or fitness for a particular purpose.

perl v5.16.3							    2014-06-10					      PPIx::Regexp::Token::Code(3)
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