Guide to Unix/Links

Links on using Unix-like operating systems follow.

General links:
 * A beginner's guide to UNIX/Linux, mn.uio.no
 * UNIX Tutorial for Beginners, ee.surrey.ac.uk
 * An A-Z Index of the Bash command line, ss64.com
 * Unix Power Tools by Peek, O'Reilly & Loukides, docstore.mik.ua
 * , wikipedia.org


 * TIO: try it online, tio.run – allows trying various utilities online, including shells

Links to man pages:
 * Manual Pages for Research Unix Eighth Edition, man.cat-v.org - has other editions as well
 * Linux man pages online, man7.org
 * Linux man pages, linux.die.net
 * Debian Manpages, manpages.debian.org
 * Ubuntu Manpage Repository, manpages.ubuntu.com
 * manual pages from Arch Linux packages, man.archlinux.org
 * FreeBSD Man Pages, freebsd.org
 * OpenBSD manual page server, man.openbsd.org
 * NetBSD Manual Pages, man.netbsd.org
 * Source Browser, opensource.apple.com – source man pages can be found in the tree
 * Commands in AIX 7.1 documentation, ibm.com
 * Commands in AIX 7.2 documentation, ibm.com
 * Commands in AIX 7.3 documentation, ibm.com
 * man pages section 1 for SunOS (pdf), February 2004, docs.oracle.com
 * man pages section 1 for Solaris 10 8/11, August 2011, docs.oracle.com
 * man pages section 1 for Solaris 10 1/13, January 2013, docs.oracle.com
 * man pages section 1 for Solaris 11.1, October 2012, docs.oracle.com
 * man pages section 1 for Solaris 11.4, February 2022, docs.oracle.com
 * Manual Pages for UnixWare 7 Release 7.1.4, 2004, xinuos.com
 * Manual Pages for OpenServer 6, sco.com
 * man pages, nixdoc.net – has Tru64 Unix, HP-UX 11i and IRIX

Links to Unix specifications:
 * IEEE P1003.2 Draft 11.2−September 1991 (pdf) - Shell and Utilities, princeton.edu
 * 1003.2-1992 POSIX Part 2: Shell and Utilities, ieee.org - requires sign in to view
 * X/Open CAE Specification Commands and Utilities Issue 4, Version 2 (pdf), 1994, opengroup.org
 * Single UNIX® Specification, Version 1 Document Set (UNIX 95), opengroup.org – requires login to download
 * The Single UNIX ® Specification, Version 2, 1997, opengroup.org
 * The Open Group Base Specifications Issue 6, 2004, opengroup.org
 * The Open Group Base Specifications Issue 7, 2008 edition, opengroup.org
 * The Open Group Base Specifications Issue 7, 2013 edition, opengroup.org
 * The Open Group Base Specifications Issue 7, 2016 edition, opengroup.org
 * The Open Group Base Specifications Issue 7, opengroup.org – latest edition
 * and, wikipedia.org

Links to operating system documentation home pages other than man pages:
 * GNU Manuals Online, gnu.org
 * The Linux Documentation Project, tldp.org
 * FreeBSD Documentation, docs.freebsd.org
 * OpenBSD Frequently Asked Questions, openbsd.org
 * NetBSD Documentation, netbsd.org
 * DragonFly BSD Documentation, dragonflybsd.org
 * Operating Systems Documentation for Solaris, docs.oracle.com
 * Minix 3 Wiki, wiki.minix3.org
 * Documentation, debian.org
 * Official Ubuntu Documentation, help.ubuntu.com
 * User Documentation, docs.fedoraproject.org

Links to operating system wikis:
 * FrontPage, wiki.freebsd.org
 * NetBSD Wiki, wiki.netbsd.org
 * FrontPage, wiki.debian.org
 * Home, wiki.ubuntu.com
 * Main Page, wiki.archlinux.org
 * Minix 3 Wiki, wiki.minix3.org
 * The Linux Foundation wiki, wiki.linuxfoundation.org
 * Fedora Project Wiki, fedoraproject.org
 * Main Page, en.opensuse.org
 * Main Page, wiki.manjaro.org
 * Main Page, wiki.alpinelinux.org
 * Main Page, wiki.gentoo.org

Links to source code:
 * linux, github.com – Linux kernel
 * coreutils, github.com – mirror of GNU Coreutils (echo, date, sort, etc.), usually used in Linux distributions
 * darwin-xnu, github.com – Darwin XNU kernel of macOS
 * Source Browser, opensource.apple.com – including the kernel XNU, shell_cmds (echo, date, sh, etc.), awk, yacc, X11 and many more
 * freebsd-src, github.com – read-only mirror of FreeBSD
 * openbsd/src, github.com – mirror of the official CVS repository of OpenBSD
 * NetBSD/src, github.com – mirror of the official CVS repository of NetBSD
 * kofemann/opensolaris, github.com – source code of the discontinued OpenSolaris
 * solaris-userland, github.com – userland utilities of Solaris operating system
 * The Unix Tree, tuhs.org – the source code of old versions of Unix