tmux/NOTES

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Welcome to tmux!
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tmux is a "terminal multiplexer", it enables a number of terminals (or windows)
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to be accessed and controlled from a single terminal. tmux is intended to be a
simple, modern, BSD-licensed alternative to programs such as GNU screen.
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This 0.2 release should be considered a beta release. It runs on OpenBSD,
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FreeBSD and Linux, but has many missing features and is expected to have a good
number of bugs.
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tmux consists of a server part and multiple clients. The server is created
when required and runs continuously unless killed by the user. Clients access
the server through a socket in /tmp. Multiple sessions may be created on a
single server and attached to a number of clients. Each session may then
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have a number of windows and windows may be linked to a number of sessions.
Commands are available to create, rename and destroy windows and sessions; to
attach and detach sessions from client terminals; to set configuration options;
and to bind and unbind command keys (invoked preceded by a prefix key, by
default ctrl-b). Please see the tmux(1) man page for further information.
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The following is a summary of major features implemented in this version:
- Basic multiplexing, window switching, attaching and detaching.
- Window listing and renaming.
- Key binding.
- Handling of client terminal resize.
- Terminal emulation sufficient to handle most curses applications. Without
known issues are: emacs, irssi, mutt, ncmpc (resize problems are present in
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both tmux and screen), vim and various tools and games in the OpenBSD base
system.
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- A optional status line (enabled by default).
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- Window history and copy and paste.
- Support for VT100 line drawing characters.
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- A basic configuration file.
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And major missing features:
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- Proper mouse support.
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- No support for programs changing termios(4) settings or other tty(4) ioctls.
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A more extensive, but rough, todo list is included in the TODO file.
tmux also depends on several features of the client terminal (TERM), if these
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are missing it may refuse to run, or not behave correctly. It is possible to
emulate some of these but tmux does not do this at present. Known working are
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TERM=screen (tmux in screen), xterm, xterm-color and rxvt. Note that tmux
(and screen) relies on an AX term capability to detect if the terminal
supports "default" (transparent) foreground and background colours. On OpenBSD,
TERM=xterm and TERM=xterm-color lack this; TERM=rxvt does have it and works fine
at least with the aterm and rxvt terminal emulators.
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Note that TERM=xterm does not support colour on OpenBSD. screen ignores this,
tmux does not: use xterm-color or rxvt for colour.
There are the following known issues:
- cons25 on the FreeBSD console lies about its support for scroll regions,
reports are that using TERM=screen pretty much works okay.
- Darwin/OS X's poll(2) is broken and doesn't support polling pty(4)s; as tmux
makes heavy use of this and there are no suitable alternatives on the
platform, Darwin and OS X are unfortunately not supported for the present.
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For debugging, running tmux with -v or -vv will generate server and client log
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files in the current directory.
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Bug reports, feature suggestions and especially code contributions are most
welcome. Please email:
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nicm@users.sf.net
-- Nicholas Marriott <nicm@users.sf.net>
$Id: NOTES,v 1.34 2008-06-21 14:11:39 nicm Exp $