This script is preinstalled on all hosts. Simply invoke it on a host, along with the path to the script from the main cwdc domain. Since this repo is cloned to cwdc.scs.carleton.ca/shared/scripts, you could run run-cwdc-script shared/scripts/cwdc-echo Hello World, and the correct script will be downloaded and run.
Since we are extremely space constrained, doing it this way means we don't have to have git installed on all the hosts and keep a local repository of the scripts.
It also allows for scripts to be updated quickly and efficiently.