[OT] run command via ssh - problem

[Dan Track]

On Wed, Nov 4, 2009 at 1:14 PM, Joachim Backes
<joachim.backes at rhrk.uni-kl.de> 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.
>
>
> Explanation: `hostname`, or $(hostname), is already evaluated on the source
> host by your shell (even inside of "...") , not on the target host.
> --
>
> Joachim Backes <joachim.backes at rhrk.uni-kl.de>
>
> http://www.rhrk.uni-kl.de/~backes
>
Hi,

Thanks for that, any thoughts on how it fits in with my script:

for i in server1 server2;do ssh root@$i
"DNSNAME=\"basename\`hostname\`\";echo $DNSNAME";done

Thanks
Dan