How do I replace value between xml tag in a file by using shell scripting sed command?

Question

I have a configuration file. Ex: config.xml It has following configurations.

    <!-- Admin username for the Authentication manager. -->
    <Username>adminusername</Username>
    <!-- Admin password for the Authentication manager. -->
    <Password>adminpassword}</Password>

I need to change the value "adminusername" and "adminpassword" by running a shell script. How can I achieve this using sed?

sed is not a good choice to work on xml input, see stackoverflow.com/questions/1794995/… — Sundeep
– Sundeep, Commented Feb 17, 2017 at 10:56

choroba · Accepted Answer · 2017-02-17 10:58:09Z

1

Sed is not the right tool for the job. Use an XML-aware tool that can really parse the XML.

For example, in xsh I happen to maintain, you can write

open config.xml ;
set /Root/Username "newname" ;
set /Root/Password "newpassword" ;
save :b ;

(Provided the XML's root element is called Root, the mentioned elements are its children, and they aren't repeated.)

answered Feb 17, 2017 at 10:58

choroba

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1 Comment

Michael Kay Over a year ago

I hadn't come across xsh. Another similar tool is xmlsh - www.xmlsh.org

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