[OT] run command via ssh - problem

[Bryn M. Reeves]

On Wed, 2009-11-04 at 14:14 +0100, Joachim Backes wrote:
> On 11/04/2009 02:10 PM, Dan Track wrote:
> > Hi,
> >
> > I'm running a command like this:
> >
> > for i in server1 server2;do ssh root@$i "`hostname`";done.
> >
> > However the hostname command always outputs the hostname of the server
> > that the above command is run from. I'd like to know how to run this
> > hostname command so that it actually runs on server 1, server2 etc..
> >
> > Thanks
> > Dan
> >
> 
> Use the following
> for i in server1 server2;do ssh root@$i '`hostname`';done.

That will try to execute the name of the remote host as though it was a
command (backticks expand on the remote host and the output of the
hostname command is used as the command line).

$ ssh abox '`hostname`'
bash: abox.example.com: command not found

Bryn.