The Linux man-pages project

The Linux man-pages project documents the Linux kernel and C library interfaces that are employed by user-space programs. It provides manual pages in the following sections:

• 1: User command; man-pages includes a very few Section 1 pages that document programs supplied by the GNU C library.
• 2: System calls documents the system calls provided by the Linux kernel.
• 3: Library functions documents the functions provided by the standard C library (with particular focus on glibc, the GNU C library).
• 4: Devices documents details of various devices, most of which reside in /dev.
• 5: Files describes various file formats, and includes proc(5), which documents the /proc file system.
• 7: Overviews, conventions, and miscellaneous.
• 8: Superuser and system administration command; man-pages includes a very few Section 8 pages, mainly documenting programs supplied by the GNU C library.

(Note that many of the man pages on a Linux system, especially those in sections other than 2 and 3, come from  other packages.)

For information on downloading the latest version of man-pages, look here.

You can browse the manual pages online here.

If you find a bug in a man page, then please report it.

If you want to contribute to work on man-pages, have a look here.

For a list of changes in various man-pages releases, see the changelog.

For information about translations of man-pages, take a look here.

An occasional blog of the project can be found here.

The man-pages maintainer is (since 2004) Michael Kerrisk ([e-mail]; blog).