Just wondering; is it possible to skip the cat in

some_command | ssh remote 'cat > outputfile'

? It feels like a UUOC.


1 Answer 1


No, you need something that reads its stdin and writes it to some file. cat is a good choice for that as it supports binary data and doesn't do anything fancy with its input so is small and efficient.

You could do:

... | ssh remote 'cp /dev/stdin outputfile`

But that would not be more efficient and would only work on systems that have /dev/stdin.

  • Using cp /dev/stdin solves my problem, see unix.stackexchange.com/questions/712933/…. Where I wanted to use sudo cp /dev/stdin /etc/root-access-file. Thanks! Feel free to answer that question with information. :-)
    – PatS
    Aug 8, 2022 at 20:24

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