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Top Forums Shell Programming and Scripting Change only first line of the match Post 302881004 by bhas85 on Thursday 26th of December 2013 01:17:36 AM
Old 12-26-2013
Change only first line of the match

The below is the code which works correctly.But my requiremnt is to change only first line of the match i.e first match not whe file.

Code:
RAFTIP=rt950test.info53.com
RAFTPORT=21250
sed '5 c\
leprechaun.host.uri.list=raft' HostSocket.txt > tmp.properties
mv -f tmp.properties HostSocket.txt

LINE=`cat HostSocket.txt | grep ^leprechaun.host.uri.list=`
sed s!${LINE}!leprechaun.host.uri.list=raft://${RAFTIP}:${RAFTPORT}!g HostSocket.txt > tmp.properties
mv -f tmp.properties HostSocket.txt

file contians line like below
hostsocket.txt
Code:
leprechaun.2.uri.list=leprechaun2urilist
leprechaun.3.uri.list=leprechaun3urilist
leprechaun.4.uri.list=leprechaun4urilist
leprechaun.5.uri.list=leprechaun5urilist^
leprechaun.host.uri.list=raft://rt900test.info53.com:20025
leprechaun.1.uri.list=leprechaun1urilist
leprechaun.2.uri.list=leprechaun2urilist
leprechaun.8.uri.list=leprechaun8urilist
leprechaun.9.uri.list=leprechaun9urilist
leprechaun.host.uri.list=raft://11.1.120.154:20527,raft://10.1.182.2:21527
leprechaun.4.uri.list=leprechaun4urilist
leprechaun.5.uri.list=leprechaun5urilist
leprechaun.6.uri.list=leprechaun6urilist


OUTPUT SHUOLD BE AS FOLLOWS:
Code:
leprechaun.2.uri.list=leprechaun2urilist
leprechaun.3.uri.list=leprechaun3urilist
leprechaun.4.uri.list=leprechaun4urilist
leprechaun.5.uri.list=leprechaun5urilist
leprechaun.host.uri.list=raft://rt950test.info53.com:21250
leprechaun.1.uri.list=leprechaun1urilist
leprechaun.2.uri.list=leprechaun2urilist
leprechaun.3.uri.list=leprechaun3urilist
leprechaun.4.uri.list=leprechaun4urilist
leprechaun.5.uri.list=leprechaun5urilist
leprechaun.6.uri.list=leprechaun6urilist
leprechaun.7.uri.list=leprechaun7urilist
leprechaun.8.uri.list=leprechaun8urilist
leprechaun.9.uri.list=leprechaun9urilist
leprechaun.host.uri.list=raft://11.1.120.154:20527,raft://10.1.182.2:21527
leprechaun.4.uri.list=leprechaun4urilist
leprechaun.5.uri.list=leprechaun5urilist
leprechaun.6.uri.list=leprechaun6urilist

Please help me in this requiremnt.

Last edited by Don Cragun; 12-26-2013 at 03:50 AM.. Reason: Add CODE tags.
 

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URI::URL(3)						User Contributed Perl Documentation					       URI::URL(3)

NAME
URI::URL - Uniform Resource Locators SYNOPSIS
$u1 = URI::URL->new($str, $base); $u2 = $u1->abs; DESCRIPTION
This module is provided for backwards compatibility with modules that depend on the interface provided by the "URI::URL" class that used to be distributed with the libwww-perl library. The following differences exist compared to the "URI" class interface: o The URI::URL module exports the url() function as an alternate constructor interface. o The constructor takes an optional $base argument. The "URI::URL" class is a subclass of "URI::WithBase". o The URI::URL->newlocal class method is the same as URI::file->new_abs. o URI::URL::strict(1) o $url->print_on method o $url->crack method o $url->full_path: same as ($uri->abs_path || "/") o $url->netloc: same as $uri->authority o $url->epath, $url->equery: same as $uri->path, $uri->query o $url->path and $url->query pass unescaped strings. o $url->path_components: same as $uri->path_segments (if you don't consider path segment parameters) o $url->params and $url->eparams methods o $url->base method. See URI::WithBase. o $url->abs and $url->rel have an optional $base argument. See URI::WithBase. o $url->frag: same as $uri->fragment o $url->keywords: same as $uri->query_keywords o $url->localpath and friends map to $uri->file. o $url->address and $url->encoded822addr: same as $uri->to for mailto URI o $url->groupart method for news URI o $url->article: same as $uri->message SEE ALSO
URI, URI::WithBase COPYRIGHT
Copyright 1998-2000 Gisle Aas. perl v5.18.2 2012-02-11 URI::URL(3)
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