focal
20.04 LTS
jammy
22.04 LTS
mantic
23.10
noble
24.04 LTS
Section Description
....(1) - Executable programs or shell commands
shutdown(2), shutdown(2)shutdown(2), shutdown(2)shutdown(2), shutdown(2)shutdown(2), shutdown(2)(2) - System calls (functions provided by the kernel)
shutdown(3)shutdown(3)shutdown(3)shutdown(3)(3) - Library calls (functions within program libraries)
....(4) - Special files (usually found in /dev)
....(5) - File formats and conventions eg /etc/passwd
....(6) - Games
....(7) - Miscellaneous (including macro packages and conventions)
shutdown(8)shutdown(8)shutdown(8).(8) - System administration commands (usually only for root)