The Linux Filesystem
/sbin) were intended for programs that needed to be on a small
/partition before the larger
/usr, etc. partitions were mounted. These days, it mostly serves as a standard location for key programs like
/bin/sh, although the original intent may still be relevant for e.g. installations on small embedded devices.
/sbin, as distinct from
/bin, is for system management programs (not normally used by ordinary users) needed before
/usr/binis for distribution-managed normal user programs.
- There is a
/usr/sbinwith the same relationship to
/usr/local/binis for normal user programs not managed by the distribution package manager, e.g. locally compiled packages. You should not install them into
/usr/binbecause future distribution upgrades may modify or delete them without warning.
/usr/local/sbin, as you can probably guess at tis point, is to
In addition, there is also
/opt which is for monolithic non-distribution packages, although before they were properly integrated various distributions put Gnome and KDE there. Generally you should reserve it for large, poorly behaved third party packages such as Oracle.