[rst]

Many of these scripts run on to pages, particularly if they attempt to cope with multiple systems. Tracing through what they do can be a real pain.

(My personal policy is that anything that asks to be installed this way does not get the script run as root, and does get its own uid, so that neither it nor anything it installs can read me uid. This does mean I'm stuck on an old version of rvm, since newer ones seem hell-bound to upgrade my apt infrastructure, and I've found no easy way for me to figure out what exactly it's trying to install, let alone what else it might do behind my back.)