tmux

MX-01 // MULTIPLEXER

tmux lets you run multiple terminal sessions in a single window with split panes and session persistence.

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tmux with multiple panes

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tmux status bar with window list

Configuration

Config lives at ~/.config/tmux/tmux.conf.

Key Settings

Setting	Value
Prefix	Ctrl + Space (also Ctrl + B)
Base index	1 (windows and panes)
Mouse	Enabled
Copy mode	Vi keybindings
Status bar	Top position, themed
Colors	256 color with RGB overrides

Key Bindings

All prefixed bindings require pressing Ctrl + Space first.

Panes

Shortcut	Action
Prefix + h	Split horizontally
Prefix + v	Split vertically
Ctrl + Alt + Arrows	Navigate panes
Ctrl + Alt + Shift + Arrows	Resize panes
Prefix + x	Kill pane

Windows

Shortcut	Action
Prefix + c	New window
Prefix + ,	Rename window
Alt + 1-9	Select window
Alt + Arrows	Navigate windows

Sessions

Shortcut	Action
Prefix + C	New session
Prefix + R	Rename session
Alt + Up/Down	Switch sessions

Copy Mode

Enter copy mode with Prefix + [, then use Vi keys:

Key	Action
v	Begin selection
y	Copy selection

Customization

Edit ~/.config/tmux/tmux.conf. The config uses Prefix + r to reload.

The bash alias t attaches to an existing session or creates a new one:

t  # attach or new session