tmux – A problem – Client-server model
tmux
Presented by @kkolotyuk
A problem
I need more consoles!
Several terminals
Tabs
What is tmux?
“tmux is a terminal multiplexer.”What is terminal multiplexer?
“A terminal multiplexer 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.”Client-server model
Tmux has client-server architecture
$ tmux ls
failed to connect to server
Start tmux server
$ tmux // start server, create default session
// and attache to it
Client-server model
Commands
$ tmux detach // detach from session (back to usual terminal)
$ tmux new-session -s foo -d // create new session with name "foo"
// and don't attach to it
$ tmux new-session -s bam -d // create new session with name "bam"
// and don't attach to it
$ tmux ls // list of sessions
0: 1 windows (created Sun Nov 16 15:28:53 2014) [168x41]
bam: 1 windows (created Sun Nov 16 15:29:53 2014) [168x41]
foo: 1 windows (created Sun Nov 16 23:49:49 2014) [168x41]
Client-server model
$ tmux attach -t 0 // attach to session with name 0
$ tmux attach -t 0 // !another client! attach to session with name 0
$ tmux attach -t foo // !another client! attach to session with name foo
Client-server model
Work in background
Attach to session Run some processes Detach from session (or close terminal, or lose ssh connection etc) Attach again and get still running porcessesVery usufull with SSH connection!
Visual structure
Tmux → Sessions → Windows → Panes
Very usufull with SSH connection!
Addressing
[session]:[window].[pane]
$ tmux send-keys -t development:1.2 'cd ~/devproject' C-m
Commands
Console
$ tmux kill-session -t foo
Shortcuts
Prefix + key
Command line
Prefix + :
Commands
CLIENTS AND SESSIONS
WINDOWS AND PANES
KEY BINDINGS
OPTIONS
Configuration
/etc/tmux.conf or ~/.tmux.conf
List of commands
# Bind prefix to C-a
set -g prefix C-a
unbind C-b
# Bind spliting panes by | and -
bind | split-window -h
bind - split-window -v
# 256 colors
set -g default-terminal "screen-256color"
# Enable Vim keys
setw -g mode-keys vi
# Status bar style
set -g status-fg white
set -g status-bg black
# Window style
setw -g window-status-fg cyan
setw -g window-status-bg default
Themes
Themes
Themes
Themes
Environments
Configure custom environment for each project:
Create project.conf file Configure environment Run tmux with
$ tmux -f project.conf attach
Environments
source-file ~/.tmux.conf
# Create new session with name "ipm" and one window "frontend"
new-session -s ipm -n frontend -d
# Split window
split-window -h -t 1
split-window -v -t 1
split-window -v -t 2
# Open dirs and run rails server
send-keys -t ipm:frontend.1 'cd ~/projects/ipm-ui' C-m
send-keys -t ipm:frontend.1 'rails s' C-m
send-keys -t ipm:frontend.2 'cd ~/projects/ipm-ui' C-m
send-keys -t ipm:frontend.3 'cd ~/projects/ipm-ui' C-m
send-keys -t ipm:frontend.4 'cd ~/projects/ipm-ui' C-m
# Create window with name "backend"
new-window -n backend -c ~/projects/ipm-backend
split-window -h -t 1 -c ~/projects/ipm-backend
split-window -v -t 1 -c ~/projects/ipm-backend
split-window -v -t 2 -c ~/projects/ipm-backend
# Open dirs, run python server and workers
send-keys -t ipm:backend.1 '. env/bin/activate' C-m
send-keys -t ipm:backend.1 './runserver.py' C-m
send-keys -t ipm:backend.2 '. env/bin/activate' C-m
send-keys -t ipm:backend.2 './runworker.py' C-m
# SSH window
new-window -n ssh
# Postgres window
new-window -n psql
send-keys -t ipm:psql 'psql ipm ipm' C-m
Environments
Remote connection
Configure SSH server Configure users restrictions Create shared tmux session Attach to sessionInstallation
- Repository
- Make from source (latest version)
- PPA
$ add-apt-repository ppa:pi-rho/dev $ apt-get update $ apt-get install tmux
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