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Top Forums Shell Programming and Scripting Update particular tag in a XML file Post 302976120 by Don Cragun on Friday 24th of June 2016 04:23:40 AM
Old 06-24-2016
Quote:
Originally Posted by mad man
@viswanath:

Please try to use single redirection symbol in your code like below.

Code:
perl -pe 'BEGIN{$/="<name>"} if(/XXX<\/name/){s/Delay/Down/g}' file.xml > file.xml

NO! Do not do this. The first thing that the above command does is reduce file.xml to length zero. The perl command then reads that zero length file and, finding no data to process, leaves you with all of your original data deleted.
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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