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I want to access and grep Jenkins Console Output as a post build step in the same job that creates this output. Redirecting logs with >> log.txt is not a solution since this is not supported by my build steps.

Build:

echo "This is log"

Post build step:

grep "is" path/to/console_output

Where is the specific log file created in filesystem?

Answers

@Bruno Lavit has a great answer, but if you want you can just access the log and download it as txt file to your workspace from the job's URL:

${BUILD_URL}/consoleText

Then it's only a matter of downloading this page to your ${Workspace}

• You can use "Invoke ANT" and use the GET target
• On Linux you can use wget to download it to your workspace
• etc.

Good luck!

Edit: The actual log file on the file system is not on the slave, but kept in the Master machine. You can find it under: $JENKINS_HOME/jobs/$JOB_NAME/builds/lastSuccessfulBuild/log

If you're looking for another build just replace lastSuccessfulBuild with the build you're looking for.