This is the most fundamental way of using ssh to remotely issue commands.
SSH provides a mechanism of issuing remote commands, and redirecting the output to you. For instance, if you want to have a quick look at your uptime on a remote machine :
[dave@caprice dave]$ ssh aurora.aalderingict.net uptime 11:09pm up 42 days, 22:55, 2 users, load average: 0.00, 0.03, 0.00
Ofcourse we used keys and the agent to manage those for us, so we dont need to enter password all the time.
This part wil show us some examples of nicely issuing remote commands to more than 1 machine at a time [todo]