Is it possible to capture the stdout from the sh DSL command in the pipeline

jenkins jenkins-workflow jenkins-pipeline
Jesse S picture Jesse S · Apr 8, 2016 · Viewed 99.4k times · Source

For example:

var output=sh "echo foo";
echo "output=$output";

I will get:

output=0

So, apparently I get the exit code rather than the stdout. Is it possible to capture the stdout into a pipeline variable, such that I could get: output=foo as my result?

Answer

iloahz picture iloahz · Aug 12, 2016

Now, the sh step supports returning stdout by supplying the parameter returnStdout.

// These should all be performed at the point where you've
// checked out your sources on the slave. A 'git' executable
// must be available.
// Most typical, if you're not cloning into a sub directory
gitCommit = sh(returnStdout: true, script: 'git rev-parse HEAD').trim()
// short SHA, possibly better for chat notifications, etc.
shortCommit = gitCommit.take(6)

See this example.

Related questions

How can I trigger another job from a jenkins pipeline (jenkinsfile) with GitHub Org Plugin?

How can I trigger build of another job from inside the Jenkinsfile? I assume that this job is another repository under the same github organization, one that already has its own Jenkins file. I also want to do this only …

Read More
Get absolute path to workspace directory in Jenkins Pipeline plugin

I'm currently doing some evaluation on the Jenkins Pipeline plugin (formerly know as Workflow plugin). Reading the documentation I found out that I currently cannot retriev the workspace path using env.WORKSPACE: The following variables are currently unavailable inside a …

Read More
How can I test a change made to Jenkinsfile locally?

When writing jenkins pipelines it seems to be very inconvenient to commit each new change in order to see if it works. Is there a way to execute these locally without committing the code?

Read More