Jenkins console output not in realtime

Question

Pretty new to Jenkins and I have simple yet annoying problem. When I run job (Build) on Jenkins I am triggering ruby command to execute my test script.

Problem is Je

Answer 1

The other answers are correct in saying that you need to ensure standard output is not buffered.

The other thing to be aware of is that Jenkins itself does line by line buffering. If you have a slow-running process that emits single characters (for example, an nunit test suite summary that prints a . for a successful test and an E for an error) you will not see anything until the end of line.

[True for my Jenkins 1.572 running on a Windows box.]