jenkins: how to capture stderr output

Question

In jenkins, you can run a script with sh(). There is an options to returnStdout, which will send stdout to a return value, rather than printing it to the console.

Is it possible to capture stderr in any way? Whether through an option to the function or through some workaround?

Answer 1

Generally, you can redirect a process's STDERR to STDOUT with 2>&1 and collect both.

There's no other way but this redirection workaround at the moment, see https://issues.jenkins-ci.org/browse/JENKINS-44930