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Full Discussion: String substitution
Top Forums Shell Programming and Scripting String substitution Post 302246472 by treesloth on Monday 13th of October 2008 06:34:45 PM
Old 10-13-2008
I hope I've understood what you wanted to do. Here's what I did:

1) Created a file called "values". It contains:

Code:
@oneValue@==tcp\:\/\/localhost\:1234
@twoValue@==tcp\:\/\/localhost\:4563
@threeValue@==tcp\:\/\/localhost\:7895

Note the escaped characters. I'm also assuming that you wanted a : before the 7895 on the last line.

2) Created a file called "file.xml". It contains:

Code:
<application name="aTest">
<NameValuePair>
<name>firstName</name>
<value>@oneValue@</value>
</NameValuePair>
<NameValuePair>
<name>secondName</name>
<value>@twoValue@</value>
</NameValuePair>
</application>

Third, used this tcsh foreach script:

Code:
foreach value ( `cat values` )
set val = `echo $value | awk -F"==" '{print $2}'`
set grp = `echo $value | awk -F"==" '{print $1}'`
sed -i .bak "s/$grp/$val/" file.xml
end

Now, since this uses sed -i, I strongly recommend backing up your .xml file before running this. I've never had sed -i fail me, but your mileage may vary drastically.

If your file corresponding to my values file is long and tedious to escape like I did above, you can use this to rewrite it:

Code:
cat values | sed -e 's/\//\\\//g' -e 's/:/\\:/g' >> newvalues

Strictly speaking, it's not necessary to cat the file into sed. Oh, well. Also, the -i can be used here as well, but I tend to err on the side of paranoia where sed -i and other file-overwrite ops are concerned. Lemme know if anything's unclear... my writing can be that way sometimes. :-)
 

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LEARN ABOUT CENTOS

tapset::tcp

tapset::tcp(3stap)														tapset::tcp(3stap)

NAME

       tapset::tcp - systemtap tcp tapset

DESCRIPTION

	This family of probe points is used to probe events that occur in the TCP layer,

       tcp.sendmsg
	      Sending a tcp message

	       See probe::tcp.sendmsg(3stap)
	       for details.

       tcp.sendmsg.return
	       Sending TCP message is done

	       See probe::tcp.sendmsg.return(3stap)
	       for details.

       tcp.recvmsg
	      Receiving TCP message

	       See probe::tcp.recvmsg(3stap)
	       for details.

       tcp.recvmsg.return
	      Receiving TCP message complete

	       See probe::tcp.recvmsg.return(3stap)
	       for details.

       tcp.disconnect
	      TCP socket disconnection

	       See probe::tcp.disconnect(3stap)
	       for details.

       tcp.disconnect.return
	      TCP socket disconnection complete

	       See probe::tcp.disconnect.return(3stap)
	       for details.

       tcp.setsockopt
	      Call to setsockopt()

	       See probe::tcp.setsockopt(3stap)
	       for details.

       tcp.setsockopt.return
	       Return from setsockopt()

	       See probe::tcp.setsockopt.return(3stap)
	       for details.

       tcp.receive
	      Called when a TCP packet is received

	       See probe::tcp.receive(3stap)
	       for details.

SEE ALSO

	  probe::tcp.sendmsg(3stap),	  probe::tcp.sendmsg.return(3stap),	 probe::tcp.recvmsg(3stap),    probe::tcp.recvmsg.return(3stap),
       probe::tcp.disconnect(3stap),  probe::tcp.disconnect.return(3stap),  probe::tcp.setsockopt(3stap),   probe::tcp.setsockopt.return(3stap),
       probe::tcp.receive(3stap),  stap(1), stapprobes(3stap)

IBM
									---							tapset::tcp(3stap)
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