How to parse an xml and get value using shell script

Question

I am having the following xml,

<?xml version="1.0" encoding="UTF-8"?>
<power-domains>
                <power-domain name="Security" cache-type="default">
                    <authentication>
                        <login-module code="test.module" flag="required" module="com.test.nms">
                            <module-option name="principal" value="admin"/>
                            <module-option name="userName" value="admin"/>
                            <module-option name="password" value="YSFSDwe"/>
                        </login-module>
                    </authentication>
                </power-domain>
</power-domains>

By using shell script, I need parse the above content and get value of userName and password?

Please guide me how to do?

glenn jackman · Accepted Answer · 2020-01-14 14:22:27Z

2

You can use this xmlstarlet command to extract the values:

xmlstarlet sel -t \
    -v '//module-option[@name = "userName"]/@value' \
    -nl \
    -v '//module-option[@name = "password"]/@value' \
  file.xml

and, assuming your shell is bash, to read those values into shell variables, use a Process Substitution:

{
    IFS= read -r userName
    IFS= read -r password
} < <(
    xmlstarlet sel -t -v '//module-option[@name = "userName"]/@value' -nl -v '//module-option[@name = "password"]/@value' file.xml  
)

echo "$userName"; echo "$password"

admin
YSFSDwe

answered Jan 14, 2020 at 14:22

glenn jackman

249k42 gold badges233 silver badges362 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Picasu27 Over a year ago

Thanks. Works fine with xmlstartlet. Is there any other way without using xmlstarlet? Since the package is not available by default in CentOS/RHEL.

Collectives™ on Stack Overflow

How to parse an xml and get value using shell script

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related