06-04-2008
replace the n'th occurance in a file
Hi All,
How can i replace the n'th occurance in a file. ?
I have a property file like
EAR;_TrackingEAR;META-INF/application.xml;xml;context-root;1;valeur
EAR;_TrackingEAR;META-INF/application.xml;xml;context-root;2;valeur2
EAR;_TrackingEAR;META-INF/application.xml;xml;context-root;3;valeur2
i need to replace the <context-root> tag value in the application.xml file with new value valeur,valeur2 etc
1 means update the first occurance with valeur,
2 means second occurance with valeur2
3 for third occurance ...
How can i do this using sed or any other command ??
Thanks in advance
Subin
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LEARN ABOUT DEBIAN
stag-parse
STAG-PARSE(1p) User Contributed Perl Documentation STAG-PARSE(1p)
NAME
stag-parse - parses a file and fires events (e.g. sxpr to xml)
SYNOPSIS
# convert XML to IText
stag-parse -p xml -w itext file1.xml file2.xml
# use a custom parser/generator and a custom writer/generator
stag-parse -p MyMod::MyParser -w MyMod::MyWriter file.txt
DESCRIPTION
script wrapper for the Data::Stag modules
feeds in files into a parser object that generates nestarray events, and feeds the events into a handler/writer class
ARGUMENTS
-p|parser FORMAT
FORMAT is one of xml, sxpr or itext, or the name of a perl module
this is the class that parsers the input file(s) and generates stag events
xml assumed as default
-w|writer FORMAT
FORMAT is one of xml, sxpr or itext, or the name of a perl module
this is the class that catches the events thrown by the parser; it can be any class, but the class is typically a writer
xml assumed as default
-o|out FILE
the writer will use this file (defaults to STDOUT)
-e|errf FILE
file to store parse error handler output
-errhandler FORMAT/MODULE
FORMAT is one of xml, sxpr or itext, or the name of a perl module
all parse error events go to this module
-r|root NODE_NAME
if this is specified, NODE_NAME becomes the root of the stag tree, and anything that was previously the root is placed below this.
this happens automatically if more than one file is parsed (because there can only be one tree root)
-color
Works only if the output handler is able to provide ASCII-colors (currently supported for itext and xml)
SEE ALSO
Data::Stag
This script is a wrapper for the method
Data::Stag->parse()
perl v5.10.0 2008-12-23 STAG-PARSE(1p)