Yes, I forgot to say I have #!/bin/bash at the head of the script.

And I actually don't have back tick in the script, ( Yes I'm aware of special characters conflicts in a script), I just put a`s as an example. Say I avoid all special characters in the ssh script, does the script look OK ?

So my question is, if there is any known conflict when using test condition in a SSH script,.which I'm not aware of, or put it in other words what is a general format of test condition in a SSH script. Or am I missing something in my script?

Thanks for your quick reply.