`tail -F` or `tee` not working...

[hkfuertes]

I would like to monitor the output of this program via stdout for a frontend that I'm building.

I can ping google.es > log and get output from:

• tail -F log

• Stream<String> runWithOutput(String cmd, List<String> args) async*{
    var p = await Process.start(cmd, args);
    yield* p.stdout.transform(utf8.decoder);
  }

But I get nothing when doing uxplay > log... how can I capture stdout?

Thank you!

PS: ... else an option -info can be implemented and export a json with the audio metadata, the same way -ca does with artwork.

[hkfuertes]

I'll answer myself... this is due to the stdout being buffered, the next command (stdbuf) did the trick!

stdbuf -i0 -o0 -e0 uxplay > uxplay.log