zshstderrdev-null

Redirect only stderr to /dev/null while redirecting stdout to a file (zsh)

I have a command cmd that I want to use in a zsh script in the form:

cmd -opt val > info.txt

but I want to redirect stderr from that one line to /dev/null.

Evidently the following does not work:

cmd -opt val > info.txt > /dev/null

How to do it?

Added: Note that I do not want any regular output written to the terminal; all regular output should be written into the specified file info.txt.

Solution

  • > and 2> are independent and can appear in the same command.

    cmd -opt val > info.txt 2> /dev/null

    Standard output is redirected to info.txt, and standard error is redirected to /dev/null.