lucid
10.04 LTS
precise
12.04 LTS
trusty
14.04 LTS
utopic
14.10
Section Description
....(1) - Executable programs or shell commands
....(2) - System calls (functions provided by the kernel)
....(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)
.sagan(8)sagan(8)sagan(8)(8) - System administration commands (usually only for root)