Tell

Dead simple SSH access using what's already available.

Did you know you can do this?

$ ssh server1 -- git pull

The command above will connect to server1 (assuming you have something like that in your SSH config (~/.ssh/config) and execute git pull upon connecting.

It wraps that command and makes it convenient to execute mutiple commands at once.

$ tell server1 -c "git pull" -c "rake cdn:update" -c "thin restart"

You can also execute commands against multiple servers.

$ tell server1 server2 -c "ls"

require "tell"

tell = Tell.new(["server1"]) do
  execute "git pull"
  execute "rake cdn:update"
  execute "thin restart"
end

tell.run