...
The LIGO talk on their dashboard is akin to something I'd like to see us try at some point.
get_htcondor
This is a script you download from https://get_htcondor is not a command. It is the name of a procedure to download and install HTCondor. This confused me for a while.htcondor.com as get_htcondor and then you can run that to install HTCondor.