tmux

Terminal multiplexer — sessions, panes, windows, and copy mode.

tmux new -s nameCreate named session

tmux attach -t nameAttach to named session

tmux lsList all sessions

tmux switch -t nameSwitch to session

tmux detachDetach from session

C-b dDetach (inside session)

C-b ( )Cycle through sessions

C-b %Split pane vertically

C-b "Split pane horizontally

C-b hjklNavigate between panes

C-b HJKLResize panes

C-b oNext pane

C-b xClose current pane

C-b qShow pane numbers

C-b { or }Swap pane positions

C-b cCreate new window

C-b 1Switch to window by number

C-b nNext window

C-b pPrevious window

C-b wList all windows

C-b [Enter scroll/copy mode

SpaceStart selection

EnterCopy selection

C-b ]Paste buffer

C-sSearch in scroll mode

C-b ?Show all key bindings

C-b tShow clock

More Tools cheatsheets

Git

Everyday version control — branches, commits, undo, and rebase.

Bash

Shell scripting, redirection, and command-line survival.

Regex

Pattern matching — anchors, classes, quantifiers, groups.