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< h1 > My tmux configuration< / h1 >
< span class = "meta" > Posted by
< a href = "https://captainark.net/author/antoine-joubert.html" > Antoine Joubert< / a >
on Tue 02 February 2016
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< p > < a href = "https://tmux.github.io/" > tmux< / a > is a terminal mutiplexer. It lets you have multiples shells running in a single terminal emulator window and it keeps those shells running in the background should you need to close your terminal emulator.< / p >
< p > I've played around with the configuration quite a bit to find settings that suit my needs. Here's what it ended up looking like :< / p >
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< p > < a href = "images/tmux_fullsize.png" > < img alt = "tmux" src = "images/tmux.png" > < / a > < / p >
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< p > This screenshot was done on Mac OS X, using the Terminal app and this < a href = "https://github.com/tomislav/osx-terminal.app-colors-solarized" > Solarized theme< / a > .< / p >
< p > I figured I'd share my tmux configuration here !< / p >
< h2 > Installing tmux< / h2 >
< p > tmux is available on Debian. I suggest using the < a href = "https://packages.debian.org/jessie-backports/tmux" > jessie backports< / a > version :< / p >
< p > < code > apt -t jessie-backports install tmux< / code > < / p >
< p > tmux is also available on Mac OS X using < a href = "http://brew.sh/" > brew< / a > :< / p >
< p > < code > brew install tmux< / code > < / p >
< h2 > tmux.conf< / h2 >
< p > I used screen before tmux, so I configured the prefix key on C-a instead of C-b. tmux has the advantage of being < em > much< / em > simpler to configure than screen.< / p >
< p > If you want to use this configuration, simply copy the following in ~/.tmux.conf. This file is read by default when tmux starts.< / p >
< p > If you simply want to try it out, copy it in a file somewhere else and have tmux load with the -f parameter (< code > tmux -f ~/tmux-test.conf< / code > ).< / p >
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< div class = "highlight" > < pre > < span > < / span > # use utf8
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set -g utf8
set-option -g status-utf8 on
set-window-option -g utf8 on
# do not wait on esc key
set-option -g escape-time 0
# completely disable automatic rename
set-window-option -g automatic-rename off
# basic settings
set -g default-terminal " screen-256color"
set -g aggressive-resize off
set-window-option -g xterm-keys on
#set-window-option -g mode-mouse off
# command history
set -g history-limit 10000
# messages
set -g message-bg default
set -g message-fg red
# no visual activity
set -g visual-activity off
set -g visual-bell off
# status bar
set-option -g status-justify centre
set-option -g status-bg default
set-option -g status-fg blue
set-option -g status-interval 5
set-option -g status-left-length 30
set-option -g status-left ' #[fg=red][ #[fg=white]#H #[fg=red]]#[default]'
set-option -g status-right ' #[fg=red][ #[fg=white]%R %d/%m #[fg=red]]#[default]'
# modes
set-option -g mode-bg default
set-option -g mode-fg blue
# inactive window format
set-window-option -g window-status-format ' #I:#W#F'
set-window-option -g monitor-activity on
#set-window-option -g monitor-content on # not available in tmux 2.0
# activity in a window
set-window-option -g window-status-activity-attr dim
set-window-option -g window-status-activity-bg default
set-window-option -g window-status-activity-fg yellow
# content in a window # not available in tmux 2.0
#set-window-option -g window-status-content-attr dim
#set-window-option -g window-status-content-bg default
#set-window-option -g window-status-content-fg red
# active window format
set-window-option -g window-status-current-fg white
set-window-option -g window-status-current-bg default
set-window-option -g window-status-current-format ' #[fg=red](#[default]#I:#W#F#[fg=red])#[default]'
# reload tmux configuration
unbind r
bind r source-file ~/.tmux.conf \; display " Configuration reloaded!"
# Screen-like keybinds
unbind C-b
set -g prefix ^A
set -g prefix2 ^Q
bind a send-prefix
bind q send-prefix
unbind c
bind c new-window
unbind ^C
bind ^C new-window
unbind n
bind n next-window
unbind ^N
bind ^N next-window
unbind A
bind A command-prompt " rename-window %%"
unbind p
bind p previous-window
unbind ^P
bind ^P previous-window
unbind a
bind a last-window
unbind ^A
bind ^A last-window
unbind [
bind Escape copy-mode
unbind w
bind w list-windows
unbind k
bind k confirm-before " kill-window"
unbind l
bind l refresh-client
unbind ' " '
bind ' " ' choose-window
< / pre > < / div >
< h2 > Aliases< / h2 >
< p > I also use two functions with tmux (in ~/.bash_aliases).< / p >
< p > The first one creates a new "mytmux" tmux session if one doesn't exist yet, opens 10 shells and selects the first one.< / p >
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< div class = "highlight" > < pre > < span > < / span > mytmux< span class = "o" > ()< / span > < span class = "o" > {< / span >
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tmux has-session -t mytmux
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< span class = "k" > if< / span > < span class = "o" > [< / span > < span class = "nv" > $?< / span > !< span class = "o" > =< / span > < span class = "m" > 0< / span > < span class = "o" > ]< / span > < span class = "p" > ;< / span > < span class = "k" > then< / span >
tmux new-session -s mytmux -n < span class = "k" > $(< / span > hostname< span class = "k" > )< / span > -d
tmux new-window -t mytmux:1 -n < span class = "k" > $(< / span > hostname< span class = "k" > )< / span >
tmux new-window -t mytmux:2 -n < span class = "k" > $(< / span > hostname< span class = "k" > )< / span >
tmux new-window -t mytmux:3 -n < span class = "k" > $(< / span > hostname< span class = "k" > )< / span >
tmux new-window -t mytmux:4 -n < span class = "k" > $(< / span > hostname< span class = "k" > )< / span >
tmux new-window -t mytmux:5 -n < span class = "k" > $(< / span > hostname< span class = "k" > )< / span >
tmux new-window -t mytmux:6 -n < span class = "k" > $(< / span > hostname< span class = "k" > )< / span >
tmux new-window -t mytmux:7 -n < span class = "k" > $(< / span > hostname< span class = "k" > )< / span >
tmux new-window -t mytmux:8 -n < span class = "k" > $(< / span > hostname< span class = "k" > )< / span >
tmux new-window -t mytmux:9 -n < span class = "k" > $(< / span > hostname< span class = "k" > )< / span >
tmux < span class = "k" > select< / span > -window -t mytmux:0
< span class = "k" > fi< / span >
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tmux attach -t mytmux
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< span class = "o" > }< / span >
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< / pre > < / div >
< p > The second one changes the tmux window name whenever I ssh to a remote host, and switches the window name back to the name of my computer when I logout from the host.< / p >
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< div class = "highlight" > < pre > < span > < / span > < span class = "k" > if< / span > < span class = "o" > [< / span > -n < span class = "s2" > " < / span > < span class = "nv" > $TMUX< / span > < span class = "s2" > " < / span > < span class = "o" > ]< / span > < span class = "p" > ;< / span > < span class = "k" > then< / span >
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ssh< span class = "o" > ()< / span > < span class = "o" > {< / span >
< span class = "k" > if< / span > < span class = "o" > [< / span > < span class = "nv" > $#< / span > -le < span class = "m" > 2< / span > < span class = "o" > ]< / span > < span class = "p" > ;< / span > < span class = "k" > then< / span >
tmux rename-window < span class = "s2" > " < / span > < span class = "si" > ${< / span > < span class = "p" > @: -1< / span > < span class = "si" > }< / span > < span class = "s2" > " < / span >
< span class = "nb" > command< / span > ssh < span class = "s2" > " < / span > < span class = "nv" > $@< / span > < span class = "s2" > " < / span >
tmux rename-window < span class = "s2" > " < / span > < span class = "k" > $(< / span > hostname< span class = "k" > )< / span > < span class = "s2" > " < / span >
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< span class = "k" > else< / span >
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< span class = "nb" > command< / span > ssh < span class = "s2" > " < / span > < span class = "nv" > $@< / span > < span class = "s2" > " < / span >
< span class = "k" > fi< / span >
< span class = "o" > }< / span >
< span class = "k" > fi< / span >
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< / pre > < / div >
< h2 > Conclusion< / h2 >
< p > That's all ! As always, please do leave a comment if you've found something useful in this article !< / p >
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