tmux 1.8 Released

I love web pages like this. The top of it reads:<p>"tmux is a terminal multiplexer"<p>"What is a terminal multiplexer? It lets you switch easily between several programs in one terminal, detach them (they keep running in the background) and reattach them to a different terminal. And do a lot more. See the manual."<p>That's awesome. So many times someone posts on HN "CaffBook.ly.errr 0.98 now released" and I have no idea what it is or why I would want it.

If you like tmux, also check out teamocil (<a href="https://github.com/remiprev/teamocil" rel="nofollow">https://github.com/remiprev/teamocil</a>) to really enhance your use. It enables you to define tmux sessions via YAML, which is great for programmatically setting up a complex dev session. Mine, for example, fires up six panes in my preferred layout, and starts up a particular part of our project in each pane.

Tmux + Vim = Pure Awesome.<p>I use vim-slime[1] to send strings to other panes in tmux. I never type anything directly into a REPL. I just send my code from Vim to it. It's amazing with lisp or python. (A little less amazing with php, as the php repl IS AWEFUL)<p>[1] <a href="https://github.com/jpalardy/vim-slime" rel="nofollow">https://github.com/jpalardy/vim-slime</a>

I realise you can rebind them, but both screen and tmux do themselves a disservice by choosing binding keys which overlap with prominent keys in emacs and for users who use emacs mode in their shell.<p>First impressions count.<p>If you want to configure tmux to use just a backtick as the escape, create ~/.tmux.conf<p><pre><code> unbind C-b set -g prefix ` bind-key ` send-prefix </code></pre> When you need to type a backtick just press it twice.<p>For screen, I used to do this:<p><pre><code> escape `` </code></pre> .. in ~/.screenrc, but I've just tried it and it seems that there's now no easy way to type a backtick when you need one.<p>Query: in screen I can switch between two buffers by doing ctrl+a, ctrl+a. This doesn't work in tmux. How do I configure this to work in tmux?

Changelog: <a href="http://sourceforge.net/p/tmux/tmux-code/ci/master/tree/CHANGES" rel="nofollow">http://sourceforge.net/p/tmux/tmux-code/ci/master/tree/CHANG...</a>

Changelog:<p><a href="http://sourceforge.net/p/tmux/tmux-code/ci/1b083aa0fd2d8ac000504488135bf58e35c3361e/tree/CHANGES" rel="nofollow">http://sourceforge.net/p/tmux/tmux-code/ci/1b083aa0fd2d8ac00...</a>

I want to like tmux, I really do, but my main gripes are scrolling in panes with the scroll wheel and selecting / copy/pasting text. iTerm (osx) or Terminator (linux) handle that much better, although I admit they can't really be compared technology-wise.<p>Alternatively, I never figured out how to select / copy text just as fast in tmux / vim / etc as with the mouse.

Incompatible Changes ====================<p>* layout redo/undo has been removed.<p>Normal Changes ==============<p>* Add halfpage up/down bindings to copy mode.<p>* Session choosing fixed to work with unattached sessions.<p>* New window options window-status-last-{attr,bg,fg} to denote the last window which was active.<p>* Scrolling in copy-mode now scrolls the region without moving the mouse cursor.<p>* run-shell learnt '-t' to specify the pane to use when displaying output.<p>* Support for middle-click pasting.<p>* choose-tree learns '-u' to start uncollapsed.<p>* select-window learnt '-T' to toggle to the last window if it's already current.<p>* New session option 'assume-paste-time' for pasting text versus key-binding actions.<p>* choose-* commands now work outside of an attached client.<p>* Aliases are now shown for list-commands command.<p>* Status learns about formats.<p>* Free-form options can be set with set-option if prepended with an '@' sign.<p>* capture-pane learnt '-p' to send to stdout, and '-e' for capturing escape sequences, and '-a' to capture the alternate screen, and '-P' to dump pending output.<p>* Many new formats added (client_session, client_last_session, etc.)<p>* Control mode, which is a way for a client to send tmux commands. Currently more useful to users of iterm2.<p>* resize-pane learnt '-x' and '-y' for absolute pane sizing.<p>* Config file loading now reports errors from all files which are loaded via the 'source-file' command.<p>* 'copy-pipe' mode command to copy selection and pipe the selection to a command.<p>* Panes can now emit focus notifications for certain applications which use those.<p>* run-shell and if-shell now accept formats.<p>* resize-pane learnt '-Z' for zooming a pane temporarily.<p>* new-session learnt '-A' to make it behave like attach-session.<p>* set-option learnt '-o' to prevent setting an option which is already set.<p>* capture-pane and show-options learns '-q' to silence errors.<p>* New command 'wait-for' which blocks a client until woken up again.<p>* Resizing panes will now reflow the text inside them.<p>* Lots and lots of bug fixes, fixing memory-leaks, etc.<p>* Various manpage improvements.

Here [0] is a nice introduction to the newly introduced <i>zoomed panes</i> feature in tmux 1.8 by Tom Ryder.<p>[0] <a href="http://blog.sanctum.geek.nz/zooming-tmux-panes/" rel="nofollow">http://blog.sanctum.geek.nz/zooming-tmux-panes/</a>

Should i finally switch from screens to tmux?

Does anyone know where to find a good introduction to tmux?<p>I attempted to start using it a couple of weekends ago but wasn't able to find any good documentation with my google-fu.

<a href="http://www.tenshu.net/p/terminator.html" rel="nofollow">http://www.tenshu.net/p/terminator.html</a> kinda like this...

Anybody know if it's possible to move between terminal windows (panes in tmux lingo) "clockwise" and "anti-clockwise"?

For what it's worth, here is my carefully crafted ~/.tmux.conf file. I was used to screen, so I carried most of the keybindings along when I switched to tmux.<p><a href="https://github.com/ludwig/dotfiles/blob/master/tmux.conf" rel="nofollow">https://github.com/ludwig/dotfiles/blob/master/tmux.conf</a>

Two things I missed from screen last I tried tmux: an equivalent of 'screen -xRR' and an orthogonality between terminals and windows so that distinct terminals connected to one session can display different windows. Especially the latter of these is integral to my workflow.

Is there any compelling reason to use tmux if you're already using a tiling window manager?

tmux status bars are customizable(no surprises there I guess) and the powerline is one of the nicer status bar arrangements - <a href="https://github.com/erikw/tmux-powerline" rel="nofollow">https://github.com/erikw/tmux-powerline</a>

'copy-pipe' mode command to copy selection and pipe the selection to a command.<p>This is exactly the functionality I was looking for back when it didn't exist. It wasn't immediately obvious how to use this, but here's how:<p>bind-key -t vi-copy 'y' copy-pipe "redis-cli -x set status"<p>set-option -g status-right '#(redis-cli --raw get status)'<p>And now I have a message I just copied to redis in my tmux status bar. I'm planning on doing this with clipboard text next.

If you are moving from screen to tmux, it's very easy to configure tmux to behave like screen. Also, for split panes, I like vim bindings('C-a l' for left pane, 'C-a r' for right pane, 'C-a &#60;' for resize pane...). I have bindings for copying tmux buffer to and from clipboard(needs xclip).<p><a href="https://gist.github.com/rahulkmr/5275679" rel="nofollow">https://gist.github.com/rahulkmr/5275679</a>

Don't know if I'm the only one in this boat, but I often feel pretty conflicted about upgrading to a newer version of a tool where I have had a lot of configuration and shortcuts defined for ages. If any of them break, you'll have to go back and dig through the arcane tmux config file, figure out what changed.

For the lulz I use neercs. It's the same as screen and tmux, except you get thumbnails of your panes in some kind of taskbar; and most importantly, you can switch between panes with a cube ascii animation, compiz style.<p><a href="http://caca.zoy.org/wiki/neercs" rel="nofollow">http://caca.zoy.org/wiki/neercs</a>

the new choose-tree commmand is superb, for anyone who regularly uses tmux and already understands how great it is, you should consider upgrading for this alone..<p>with several sessions running on most of my machines, i frequently found myself `detaching` and `reattaching` to a different session... as the `choose-session` command gives you a full list of all the windows, which tends to obfuscate exactly what's going on, particularly if you have a bunch of sessions and windows..<p>however, the `choose-tree` gives you a session tree, which you can expand and easily identify... meaning that instead of sending `^a d`, followed by tmux attach sessionname you can comfortably do a `^a s` and get where you want to be (presuming you've remapped ^b to ^a)<p>also, you should be using the tmux buffers, `^a =`!

One thing that I really want is the ability to set different background colors for panes and windows. Sadly, it is a feature of a terminal app, not tmux. One can only imagine tmux would integrate tightly with various terminal applications to accomplish that.

Does this release have better performance than previous releases? I enjoy using tmux, but for some applications (i.e. with large amounts of text spewing to the console) it just hasn't (historically) performed as well as GNU screen.

i've switched from tmux to screen to byobu ( which is a wrapper for screen ) because of its simplicity. screen also has very little problems, with tmux i always had time costly issues.

Anyone know if it is possible to do single combination keybindings? Currently all of the keybindings are things like 'Ctrl+W L', whereas I'd like to do things like 'Command+L'?

To install/update on a mac, install Homebrew[1] and run `brew install tmux`.<p>1. <a href="http://mxcl.github.com/homebrew/" rel="nofollow">http://mxcl.github.com/homebrew/</a>

id love zmodem support... but I'm probably the only one that uses it

i suggest new commer give byobu a try, a wrapper of tmux.

tmux has been a great recent upgrade for me -- switched from a bunch of nested screens. really highly recommended.

pracically - how is it different form screen ?

What is the simplest way to install tmux 1.8 on Ubuntu 12.04?? Running `sudo apt-get install tmux` puts tmux 1.6 on my system...