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Full Discussion: Exact String replacement with sed
Top Forums Shell Programming and Scripting Exact String replacement with sed Post 302356547 by srage on Saturday 26th of September 2009 03:02:47 AM
Old 09-26-2009
Quote:
Originally Posted by Rhije
It depends on if it is going to be on lines by itself, or if it is going to be its own word, such as "rat" inside of "berate". Word boundaries would probably work (those are the \b escapes in the second part of the code below).

Code:
-bash-3.2$ sed 's/^testtest$/123456/g' test.txt
123456
etstetst
testetst
testtttt
etsttest
testtesttest
123456
-bash-3.2$ sed 's/\btesttest\b/123456/g' test.txt
123456
etstetst
testetst
testtttt
etsttest
testtesttest
123456

If may be as part of a line

Eg.

value = testtest
value1 = etstetst
value1 = testetst
value2 = testtttt
value1 = etsttest
value2 = testtesttest
value1 = testtest

Regards
Eugene
 

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LEARN ABOUT CENTOS

gd::barcode::upce

Barcode::UPCE(3)					User Contributed Perl Documentation					  Barcode::UPCE(3)

NAME

       GD::Barcode::UPCE - Create UPC-E barcode image with GD

SYNOPSIS

       ex. CGI

	 use GD::Barcode::UPCE;
	 binmode(STDOUT);
	 print "Content-Type: image/png

";
	 print GD::Barcode::UPCE->new('123456')->plot->png;

       with Error Check

	 my $oGdBar = GD::Barcode::UPCE->new('123456789');
	 die $GD::Barcode::UPCE::errStr unless($oGdBar);       #Invalid Length

DESCRIPTION

       GD::Barcode::UPCE is a subclass of GD::Barcode and allows you to create UPC-E barcode image with GD.  This module based on "Generate
       Barcode Ver 1.02 By Shisei Hanai 97/08/22".

   new
       $oGdBar = GD::Barcode::UPCE->new($sTxt);

       Constructor.  Creates a GD::Barcode::UPCE object for $sTxt.  $sTxt has 6 or 7 or 8 numeric characters([0-9]).  If $sTxt has 6 characters,
       this module adds '0' at the front of $sTxt.  and calculates CD for you.	If $sTxt has 7 characters, this module calaculates CD for you.

   plot()
       $oGd = $oGdBar->plot([Height => $iHeight, NoText => 0 | 1]);

       creates GD object with barcode image for the $sTxt specified at new method.  $iHeight is height of the image. If NoText is 1, the image has
       no text image of $sTxt.

	ex.
	 my $oGdB = GD::Barcode::UPCE->new('123456');
	 my $oGD = $oGdB->plot(NoText=>1, Height => 20);
	 # $sGD is a GD image with Height=>20 pixels, with no text.

   barcode()
       $sPtn = $oGdBar->barcode();

       returns a barcode pattern in string with '1', 'G' and '0'.  '1' means black, 'G' also means black but little bit long, '0' means white.

	ex.
	 my $oGdB = GD::Barcode::UPCE->new('123456');
	 my $sPtn = $oGdB->barcode();
	 # $sPtn = '';

   $errStr
       $GD::Barcode::UPCE::errStr

       has error message.

   $text
       $oGdBar->{$text}

       has barcode text based on $sTxt specified in new method.

AUTHOR

       Kawai Takanori GCD00051@nifty.ne.jp

COPYRIGHT

       The GD::Barocde::UPCE module is Copyright (c) 2000 Kawai Takanori. Japan.  All rights reserved.

       You may distribute under the terms of either the GNU General Public License or the Artistic License, as specified in the Perl README file.

SEE ALSO

       GD::Barcode

perl v5.16.3							    2003-05-29							  Barcode::UPCE(3)
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