Store the grep result of a maven command in a variable

Question

I want to grep the result of a maven (maven-help plugin) command and store the grep result in a shell variable and use it in .gitlab-ci.yml file.

I've tried this and the maven command prints the desired result, but echo $VERSION prints nothing (i.e. VERSION variable is empty):

VERSION= mvn org.apache.maven.plugins:maven-help-plugin:2.1.1:evaluate -Dexpression=project.version

I've also tried this and it gets error: Downloading:: command not found:

VERSION= $(mvn org.apache.maven.plugins:maven-help-plugin:2.1.1:evaluate "-Dexpression=project.version" | grep -v '\[')

So how can i store the grep result in a variable?

Possible duplicate of [assigning the output of a command to a variable in a shell script](https://stackoverflow.com/questions/20688552/assigning-the-output-of-a-command-to-a-variable-in-a-shell-script) — Benjamin W., Jan 18 '18 at 19:43

score 0 · Accepted Answer · answered Jan 18 '18 at 19:02

0

Remove the space after the =, that is:

VERSION=$(mvn org.apache.maven.plugins:maven-help-plugin:2.1.1:evaluate "-Dexpression=project.version")

answered Jan 18 '18 at 19:02

JFMR

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You can do it inside the `$(...)` – JFMR Jan 18 '18 at 19:14

Store the grep result of a maven command in a variable

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