[solved] Execute commands on another Pi

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since my linux knowledge is limited, I’m having a question.
Is there a way to reboot or shutdown another pi from my pimaitc pi?
want to use this as an execute command with a pimatic rule then.

You can connect it to a RF switch
or use http://www.cyberciti.biz/faq/unix-linux-execute-command-using-ssh/

Well Yvesg11 is right but Linux would ask you to enter a password for this.
You need to do, in order to do this password-less, a ssh-key exchange:
http://www.linuxproblem.org/art_9.html

you can use passwordless connexion, for that all you need to do is to add you id_rsa.pub (to create it if not already just do ssh-keygen on the pi you want to connect with) to the /root/.ssh/known_hosts (create it if not there) of the pi you want to connect to.

Let me know if unclear.

thanks guys! i’ll try that!

works like a charm and is easy to set up.
thanks again!!

works for me, too!
Just created two buttons and two rules for my server:

if greenON is pressed and Green Server is absent then execute "sudo etherwake 6c:f0:49:74:60:42"
if greenOFF is pressed and Green Server is present then execute “ssh joe@green sudo shutdown -h now”

IMPORTANT:
to be able to run the shutdown command you need to add the line
yourusername ALL = NOPASSWD: /sbin/shutdown
to the text file, which opens with the command
sudo visudo