[$] Sudo and its alternatives

Sudo is a ubiquitous tool for runningcommands with the privileges of another user on Unix-like operating systems. Overthe past decade or so, some alternatives havebeen developed; the base system of OpenBSD now comes with doas instead, sudo-rs is a subset ofsudo reimplemented in Rust, and, somewhat surprisingly, Microsoft alsorecently announcedits own Sudo for Windows. Each of these offers a different approach to thetask of providing limited privileges to unprivileged users.