CODEWITHSUNDEEP
bashshellunix
yarab yarab
yarab yarab

Reputation: 27

Extract a string in linux shell script

Guys i have a string like this:

variable='<partyRoleId>12345</partyRoleId>'

what i want is to extract the value so the output is 12345.

Note the tag can be in any form: <partyRoleId> or <ns1:partyRoleId>

any idea how to get the tag value using grep or sed only?

Upvotes: 0

Views: 49

Answers (2)

Saboteur
Saboteur

Reputation: 1428

to use only grep, you need regexp to find first closing brackets and cut all digits:

echo '<partyRoleId>12345</partyRoleId>'|grep -Po ">\K\d*"

-P means PCRE -o tells to grep to show only matched pattern and special \K tells to grep cut off everything before this.

Upvotes: 0

choroba
choroba

Reputation: 241798

Use an XML parser to extract the value:

echo "$variable" | xmllint -xpath '*/text()' -

You probably should use it for the whole XML document instead of extracting a single line from it into a variable, anyway.

Upvotes: 2

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