There are two ways to launch Jump Desktop for Mac connections from the Terminal / command line:
1. From a Terminal window try opening a jump:// url. For example - the following command opens up a RDP connection to 192.168.1.1:
There are more options you can add into the URL like the protocol, username / password etc. See here for the complete list: http://support.jumpdesktop.com/entries/371238-starting-jump-desktop-from-other-applications .
2. If you want to open an existing, saved connection: Right click your computer's icon in Jump and then click the Create Alias option. Then save the alias to any directory you want. Then when you want to launch the connection try this from the Terminal window:
open [path to alias]