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Top Forums Shell Programming and Scripting SED multiple find and replace Post 302576572 by colinwilson1303 on Friday 25th of November 2011 08:57:54 AM
Old 11-25-2011
SED multiple find and replace

Hi,

searched through the forums and not really found what I am looking for. I am a bit of novice when it comes to anything above basic scripting and not even that when it comes to the sed command.

I have been reading the tutorials online but still struggling to get what I need Smilie


I have a script that has the following output (a small example of the full file):

example.txt
Code:
 
092F 1639163_Cluster01_Prod
0522 1639163_Cluster02_Prod
08C2 1639163_Cluster07_Prod
0957 1639163_Cluster07_Prod
1762 1024477_Cluster07_Prod
1767 1024477_Cluster07_Prod
176C 1024477_Cluster07_Prod
1771 1024477_Cluster07_Prod
1776 1024477_Cluster07_Prod
1EDC 1639163_Cluster07_Prod
1EE4 1639163_Cluster07_Prod
07F0 2048953_Cluster11_Prod
0807 1228838_Cluster11_Prod
175C 1229372_Cluster11_Prod
1B68 1024477_Cluster11_Prod
1E87 1639163_Cluster11_Prod
1D2B 1010831_SRV93012
1D6A 1045688 SRV93013
143E  34856 RS6PUNI01_Cluster
143F  34856 RS6PUNI01_Cluster
1440  34856 RS6PUNI01_Cluster
1441  34856 RS6PUNI01_Cluster
1442  34856 RS6PUNI01_Cluster
1443  34856 RS6PUNI01_Cluster

What I want to do is replace the "_" with a space between the numbers and the server names e.g.
from:
1639163_Cluster11_Prodto:
1639163 Cluster11_Prod


now I have been able to do this by using the command:

sed 's/1639163_/1639163 /g' example.txt

I am not sure if there is a better way of doing this but if there is not how do I do a multiple search and replace for the other sized devices within the one command - e.g.:
sed 's/2048953_/2048953 /g' example.txt
sed 's/1228838_/1228838 /g' example.txt
sed 's/1024477_/1024477 /g' example.txt

etc, etc.

I also want the changes to update the example.txt file - is this possible?

Thanks for your help.

Col
 

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mfontset_lookup(3m17n)						 The m17n Library					    mfontset_lookup(3m17n)

NAME
mfontset_lookup - Lookup a fontset. SYNOPSIS
MPlist * mfontset_lookup (MFontset * fontset, MSymbol script, MSymbol language, MSymbol charset) DESCRIPTION
Lookup a fontset. The mfontset_lookup() function lookups fontset and returns a plist that describes the contents of fontset corresponding to the specified script, language, and charset. If script is Mt, keys of the returned plist are script name symbols for which some fonts are specified and values are NULL. If script is a script name symbol, the returned plist is decided by language. o If language is Mt, keys of the plist are language name symbols for which some fonts are specified and values are NULL. A key may be Mt which means some fallback fonts are specified for the script. o If language is a language name symbol, the plist is a FONT-GROUP for the specified script and language. FONT-GROUP is a plist whose keys are FLT (FontLayoutTable) name symbols (Mt if no FLT is associated with the font) and values are pointers to MFont. o If language is Mnil, the plist is fallback FONT-GROUP for the script. If script is Mnil, the returned plist is decided as below. o If charset is Mt, keys of the returned plist are charset name symbols for which some fonts are specified and values are NULL. o If charset is a charset name symbol, the plist is a FONT-GROUP for the charset. o If charset is Mnil, the plist is a fallback FONT-GROUP. RETURN VALUE
It returns a plist describing the contents of a fontset. The plist should be freed by m17n_object_unref(). COPYRIGHT
Copyright (C) 2001 Information-technology Promotion Agency (IPA) Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST) Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License <http://www.gnu.org/licenses/fdl.html>. Version 1.6.2 12 Jan 2011 mfontset_lookup(3m17n)
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