# Manual page sections

UNIX manual pages are divided into eight sections or chapters. Each section covers a specific area. Section 9 is a Linux addition. Some sections have subsections, indicated by some letters after the section number. For example, manual pages for X programs are in section 1x.

- Section 1: User commands.
- Section 2: System calls.
- Section 3: Library functions.
- Section 4: Device files.
- Section 5: File formats.
- Section 6: Games.
- Section 7: Miscellaneous.
- Section 8: System administration.
- Section 9: Kernel functions.

(The links above are to lists of all manual pages in each section. Note that all links may not work, if you don't have any manual pages in that section installed.)