UNIX for Dummies Questions & Answers

Hi all
I have to run certain set of commands on two machines, the two machines see the same home, it's mounted from the same place. The problem is that i have to ssh to a certain machine "which is slow unfortunately" that has the license to run a tool and i want to return to the original machine "which is strong one" to run the rest of commands that do not need i license so how can i launch a script from one machine, execute some commands and ssh to another machine and continue the rest of commands in the script, i want something like following


### I'm in machine1
run command1
ssh machine2
run command2


note: I log in to all the machines will the same account and i do not need to type the password, I have done something called passoff to disable asking for password when using ssh

thanks in advance

I'm not sure to understand what you want, but as long as you don't have to use password on each call, so you have a private/public ssh key login type you can use ssh as anything else.
For example :

Code:

hostname2$ ssh hostname1 'ps aux' | grep apache

this will run ps aux on hostname1 and grep the output on hostname2.

Another example :

Code:

machine1$ ssh machine2 'command2' | command1

This will launch command1 on machine2 to process the output of command2 from machine2.

first thanks for reply

I have a Q:

In the second code i think you mean it will run command1 on machine1 on the output of command2 on machine2, is that right ?

Right.