[kilburn]

> /bin, /usr/bin, /usr/sbin? Who knows!

If anyone is curious:

Historically /bin and /sbin contained the binaries that were necessary to bring up the system (especially to mount the /usr partition, which was "best practice" to have separately from the root and /boot partitions). Nowadays most distros just symlink them to /usr/(s)bin

/usr/sbin is for utilites that only root should use, whereas /usr/bin is for regular applications managed by your system (i.e.: your distro's default package manager).