One big turnoff with GNU parallel is that the first time it is run on a machine, you must interactively accept a EULA. There are ways around it, but as a rule

One big turnoff with GNU parallel is that the first time it is run on a machine, you must interactively accept a EULA. There are ways around it, but as a rule of thumb I avoid command-line tools that do this, because this inconsistent runtime behavior is annoying at best and can easily break and complicate automation. And no, I don't want to set an environment variable on a fleet of machines to suppress behavior which shouldn't be enabled by default to begin with! <cough> .NET telemetry </cough> A real shame, because it is an otherwise useful tool IMHO.