The Filesystem Hierarchy
Filesystem Hierarchy Standard (FHS)
| Path | Purpose |
|---|---|
/ | Root of everything |
/bin, /sbin | Essential (system) binaries |
/etc | System configuration |
/home | User home directories |
/var | Variable data - logs, spool, caches |
/tmp | Temporary files (often cleared on boot) |
/usr | User programs & libraries |
/opt | Optional/3rd-party software |
/proc, /sys | Virtual kernel filesystems |
/dev | Device files |
/boot | Kernel + bootloader |
/mnt, /media | Mount points for removable/temp media |
Exam tip: Logs go in/var/log. Configuration is in/etc. Never assume - memorising the FHS earns easy exam points.