Tmux session, with two horizontal and one vertical pane.
Developer(s) Nicholas Marriott
Initial release November 20, 2007 (2007-11-20)[1]
Stable release
2.3 / 29 September 2016 (2016-09-29)
Written in C
Operating system Unix-like
Available in English
Type Terminal multiplexer
License ISC license

tmux is a software application that can be used to multiplex several virtual consoles, allowing a user to access multiple separate terminal sessions inside a single terminal window or remote terminal session. It is useful for dealing with multiple programs from a command-line interface, and for separating programs from the Unix shell that started the program.[2] It provides much of the same functionality as GNU Screen, but it is distributed under a BSD license.


tmux includes most features of GNU Screen. It allows users to start a terminal session with clients that are not bound to a specific physical or virtual console; multiple terminal sessions can be created within a single terminal session and then freely rebound from one virtual console to another, and each session can have several connected clients. The features that differentiate tmux from GNU Screen are[3]


tmux enjoys wide adoption; it can be found in software repositories of nearly all UNIX-like operating systems[5] and is included in the base system of OpenBSD.[2]

See also


  1. Changelog
  2. 1 2 "Keyboard and Display Controls", Snappy Answers to Stupid Questions, OpenBSD, retrieved 7 December 2011 |chapter= ignored (help)
  3. 1 2 Perrin, Chad (25 October 2010), "Is tmux the GNU Screen killer?", TechRepublic, retrieved 7 December 2011
  4. de Weerd, Paul (12 July 2009), "Interview with Nicholas Marriott on tmux", OpenBSD Journal, retrieved 7 December 2011
  5. 1 2 "Tmux – the Terminal multiplexer", Linuxaria, 15 September 2011, retrieved 7 December 2011
  6. O'Higgins, Niall (4 June 2009), tmux, a BSD alternative to GNU Screen, retrieved 7 December 2011
  7. Alexander, Alex (17 May 2010), "switching from gnu screen to tmux", Linux~ized, retrieved 7 December 2011
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