How to pipeline stderr in cmd.exe?

Some programs would prefer to output the help message in stderr. I want to search the help message with grep command, xx /? | grep regex?

How could i do this?

1 Answer

You can redirect stderr to stdout by using 2>&1, and then pipe stdout into grep.

So, what I think you want is this:

xx /? 2>&1 | grep regex

4

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