Plug in for Tasker and Locale which allows execution of commands on a remote machine via an SSH connection.

Supports password authentication and shared key authentication using openSSH dsa or rsa keys.

Supports variable substitution so you can use your tasker variables in your commands.

Allows access to the output of your command via tasker variable.

THIS APP REQUIRES EITHER TASKER OR LOCALE TO BE INSTALLED, IT WILL NOT WORK WITHOUT THEM

find it under plugins/ssh command.
input the ip or hostname of the remote machine (and port if necessary), your user name on the remote machine and either a password or select your local private key file. choose the correct authentication method.
The plugin will remember these details for any other tasks you create to run commands on the remote machine,

Enter the command you want to run on the remote machine and then you can use tasker to run them via button, shortcut, menu, condition or any of taskers many other options.

At the moment both rsa and dsa keyfiles are supported (i.e. keys generated by ssh-keygen or connectbot), To use keys generated in putty (puttygen) use the "export as openssh" option from the menu to obtain a key in the correct format.