UUOC with ssh file transfer

Question

Just wondering; is it possible to skip the cat in

some_command | ssh remote 'cat > outputfile'

? It feels like a UUOC.

It is a UUOC (useful use of cat). – Gilles 'SO- stop being evil' May 21 '13 at 19:29 — Gilles 'SO- stop being evil', May 21 '13 at 19:29

score 4 · Accepted Answer · answered May 21 '13 at 10:57

4

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.

answered May 21 '13 at 10:57

Stéphane Chazelas

544,893

Using cp /dev/stdin solves my problem, see https://unix.stackexchange.com/questions/712933/does-unix-have-a-command-to-read-from-stdin-and-write-to-a-file-like-tee-withou. Where I wanted to use sudo cp /dev/stdin /etc/root-access-file. Thanks! Feel free to answer that question with information. :-) – PatS Aug 08 '22 at 20:24

UUOC with ssh file transfer

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