9个
1. /bin: boot and run
2. /boot: boot loader
3. /dev:
4. /etc: system-wide configuration files + shell scripts (boot)
5. /lib: lib files of core sys programs
6. /opt: “optional” hold commercial software products.
7. /tmp: temporary
8. /usr: programs and support files used by regular users.
9. /var: store data that is likely to change
转载于:https://www.cnblogs.com/GW977/p/11305914.html
