tmuxv1.9a

Terminal Awsomeness

Before we beginPhones quiet please

Thank you

Today's subjects...

What is tmux?How to control tmuxDemo of significant featuresQuestions from you

Random bits about me

I'm a long time Unix consultantI spend alot of time in terminalsI enjoy using good toolsI like to share good ideas

What is tmux?tmux is a terminal multiplexer

"it enables a number of terminals to be created,accessed, and controlled from a single screen."

Indeed... like GNU screen.

What it can look like

Why use it?

Session persistenceOne connection, multiple sessionsPower... more on that in a minute

What makes it special?

easily and extensively configurablepowerful tilingscripted controlgood documentationactively maintainedclean code --> easy to contributecan be found by Google et al

How does it work?

client --> server --> sessions --> windows --> panes

Time for action

Controlling tmux

and

Basic window management

Controling tmux - 1/5Using the shell

(Notice: Tab completion)

tmux (=tmux new‐session)tmux new‐windowtmux newwtmux list‐windowstmux detach‐clienttmux attach

As you can see... very scriptable indeed.

Controling tmux - 2/5Using the built in command-prompt

(Notice: Command history and tab completion)

newwsplit ‐hrename‐windowprevious‐window

Controling tmux - 3/5Using shortcuts

Prefix Key + Commandkey

C‐a c    (create new window)C‐a C‐a  (goto last window)C‐a C‐n  (goto next window)C‐a C‐p  (goto previous window)C‐a 2    (jump to window number)C‐a ‐    (new horizontal split)C‐a ,    (rename window)C‐a d    (detach)

Controling tmux - 4/5Using the mouse

Window selectionPane selectionPane resizingText selection

Cute? Yes.Practical? You decide.

Controling tmux - 5/5Using the config files, lots can be customized.

/etc/tmux.conf$HOME/.tmux.conf

Session intializationLayout and colors of all status bar itemsExtending status bar with shell scriptsKeyboard shortcuts / macrosGeneral behaviour of tmux

Too much to mention here

An example config file

# This is a very simplified tmux config exampleunbind C‐bset ‐g prefix C‐abind C‐a last‐windowbind C‐c new‐windowbind ‐ split‐window ‐vbind \ split‐window ‐hset ‐g status‐right "#[fg=#44ff44]@#H  %d‐%b‐%y  %H:%M"set ‐g mode‐keys vineww ‐n jodeli

Tiling

Create / SplitNavigateCustom layoutsStandard layoutsRearrangeZoomBreak / JoinDelete / Kill

And last but not least...

Synchronous input!

Buffer manipulation

vi or emacs control modenavigate (always in copy mode)searchselect and copy text (line or block)past buffer (last or selected)save selected bufferrealtime logging to file

ScriptingAn example: Opening a window with multiple ssh connections

Open a new windowCreate 4 panesStart ssh in each paneLog the output of each tile to diskEnable synchronized input

Can also be done on startup to initialize new sessions.

Session sharing

1. Start a tmux session with a given socket path

2. Allow rw access to socket for group/users

3. Other user starts 'tmux attach' using the shared socket

tmux ‐S /tmp/tmux‐shared new

chown 777 /tmp/tmux‐shared

tmux ‐S /tmp/tmux‐shared attach

Monitoring (in)activity

monitor panes for (in)activitymonitor panes for stringschanges on status bar indicates event

Showing tmux stateThere are several commands to show the state of tmux

info                : show server status (clients,sessions,windows,panes)show‐options ‐g     : show tmux server settingsshow‐options ‐wg    : show window settingslist‐commands       : show available tmux commandslist‐keys           : show bound keyslist‐sessions (ls)

Start tmux ‐v and get a very detailed client log in the startup dir.

and much more...

Cygwintmux is nowadays packaged with Cygwin

and works like a charm.

Documentation

man tmux

tmux.sourceforge.nettmux FAQmany online examples

Summarytmux is...

powerfulflexible

well documented

something you really ought to have in your toolkit

That's all for now.This slideshow is available on

NOTE: Do check out the embedded note ("asides") in this reveal.js slideshow.slideshare.net

Questions?

Thank you!