help with text-append over SSH ?

Giorgos Keramidas keramida at
Fri Oct 12 07:38:33 PDT 2007

On 2007-10-11 16:49, Juri Mianovich <juri_mian at> wrote:
> I have an account on a system where I cannot log in over SSH, but I
> _can_ run a limited set of commands remotely, over SSH.  (I am in a
> jail of some sorts).
> I want to append the contents of a local text file to the contents of
> a remote text file, over SSH.
> Normally, I would do this locally with:
> cat file1 >> file2
> But again, file2 is remote, and I can't log in there... I have access
> to the 'echo' command and the 'dd' command (among others) on the
> remote host ... so for instance, I can do things like this:
> ssh user at host rm -rf filename
> So, with all that in mind, how do I append the contents of a local
> file to a remote file, over SSH, using either 'echo' or 'dd' ?

Try running:

    cat file1 | ssh user at host "dd >> file2"

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