How can I append to a file remotely using a linux command (via ssh keys)

abefroman · 11-27-2009, 08:07 PM

How can I append to a file remotely using a linux command (via ssh keys)

This is what I have so far:

Code:

ssh root@server1 "echo '55.55.55.55 ssh-rsa AAAABasdfaser45234234asdfasdfR0PxE' >>/root/.ssh/known_hosts"

I also tried:

Code:

ssh root@server1 `echo "55.55.55.55 ssh-rsa AAAABasdfaser45234234asdfasdfR0PxE" >>/root/.ssh/known_hosts`

and both are giving the error:

Code:

sh: /root/.ssh/known_hosts: Permission denied

And also I tried:

Code:

ssh root@server1 `echo 55.55.55.55 ssh-rsa AAAABasdfaser45234234asdfasdfR0PxE` >>/root/.ssh/known_hosts

Which gives the error:

Code:

-bash: command substitution: line 1: unexpected EOF while looking for matching `"'
-bash: command substitution: line 2: syntax error: unexpected end of file
-bash: /root/.ssh/known_hosts: Permission denied

Which means it sounds like its trying to execute /root/.ssh/known_hosts instead of writing to it.

TIA

18Googol2 · 11-27-2009, 09:36 PM

This should work:

Code:

ssh root@server1 'echo 55.55.55.55 ssh-rsa AAAABasdfaser45234234asdfasdfR0PxE >> /root/.ssh/known_hosts'

abefroman · 11-27-2009, 09:51 PM

Quote:

Originally Posted by 18Googol2

This should work:

Code:

ssh root@server1 'echo 55.55.55.55 ssh-rsa AAAABasdfaser45234234asdfasdfR0PxE >> /root/.ssh/known_hosts'

Thanks, but it still says permission denied, I tried it with ' and `