How to filter the xcodebuild command line output?

Question

Running xcodebuild from the console will bring you very verbose output and I wasn't able to locate any options for limit its output in order to display only warnings and errors.

I'm looking for a way to capture the xcodebuild output and filter it. It would prefer a Python solution that will work with pipes but I'm open to other approaches as long they are command line based solutions.

Are any tools that are already able to do this?

Answer 1

To only see the error output messages, redirect the standard output to /dev/null (a special file that works as a black hole) like this:

xcodebuild > /dev/null

If you want to capture the error output into a file, you can do:

xcodebuild 2> ./build_errors.log