PowerShell Capture Git Output

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As I explained here, or here, Git command output are done on stderr, not stdout.

So in your case, you need to pipe stderr.
See “Redirection of standard and error output appending to the same log-file” for instance.

Note: with Git 2.16 (Q1 2018), you can try and set first 

 set GIT_REDIRECT_STDERR=2>&1

Then stderr should be redirected to stdout.

In “PowerShell – Capturing STDERR Output for Git Commands“, the OP Brandon points out to the --porcelain option of (for instance) git push:

& git status --porcelain >> $logFilePath
& git push --porcelain >> $logFilePath

It allows to convert the outputs into a machine readable format and pipe them to the output.

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