Ability to write output to a text file

One "easy" thing to consider is just writing output to a passed file path.

https://cgit.drupalcode.org/tugboat/tree/tugboat.module#n123

if (!empty($file_path)) {
  $command .= ' 2>&1 | tee ' . $file_path;
}

I'm concerned how this might impact the other streams but I think testing is needed.

Approach motivated by https://askubuntu.com/questions/420981/how-do-i-save-terminal-output-to-...

In general, the approach "worked". But, it's not complete. So, I'll hold off on the patch.

The output generated is only the JSON response output from the command. The console output and/or errors are captured as other streams. Such things are also value for logging purposes.

This approach needs extended for both streams and output. I'm recommending three new, optional parameters for the file paths of stdout, errors, and the command output.

Awesome, merging

Fixed