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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 REDHAT

nwbpset

NWBPSET(1)							      nwbpset								NWBPSET(1)

NAME

       nwbpset - Create a bindery property or set its value

SYNOPSIS

       nwbpset [ -h ] [ -S server ] [ -U user name ] [ -P password | -n ] [ -C ]

DESCRIPTION

       nwbpset Reads a property specification from the standard input and creates and sets the corresponding property. The format is determined by
       the output of 'nwbpvalues -c'. nwbpset will hopefully become an important part of the bindery management suite of ncpfs, together with

       As another example, look at the following command line:

	 nwbpvalues -t 1 -o supervisor -p user_defaults -c |
	 sed '2s/.*/ME/'|
	 sed '3s/.*/LOGIN_CONTROL/'|
	 nwbpset

       With this command, the property user_defaults of the user object 'supervisor' is copied into the property login_control of the user  object
       'me'.

	 nwbpvalues -t 1 -o me -p login_control -c |
	 sed '9s/.*/ff/'|
	 nwbpset

       This command disables the user object me.

       Feel free to contribute other examples!

       nwbpset looks up the file $HOME/.nwclient to find a file server, a user name and possibly a password. See nwclient(5) for more information.
       Please note that the access permissions of $HOME/.nwclient MUST be 600 for security reasons.

OPTIONS

       -h
	  -h is used to print out a short help text.

       -S server
	  server is the name of the server you want to use.

       -U user
	  user is the user name to use for login.

       -P password
	  password is the password to use for login. If neither -n nor -P are given, and the user has no open connection to  the  server,  nwbpset
	  prompts for a password.

       -n
	  -n should be given if no password is required for the login.

       -C
	  By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off
	  this conversion by -C.

AUTHORS

       nwbpset was written by Volker Lendecke. See the Changes file of ncpfs for other contributors.

nwbpset 							     8/7/1996								NWBPSET(1)
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