📖 Guide

Screen — Complete Reference

GNU Screen terminal multiplexer — session management, window splits, copy mode, key bindings, and common workflows.

50 commands across 7 categories

Session Management Window Management Split Regions Copy Mode Configuration Key Bindings Common Workflows

Session Management

Command	Description
`screen`	Start a new screen session
`screen -S mysession`	Start a named session
`screen -ls`	List all screen sessions
`screen -r mysession`	Reattach to a named session
`screen -d mysession`	Detach a session remotely
`screen -dr mysession`	Detach and reattach a session
`screen -x mysession`	Attach to an already-attached session (multi-display)
`Ctrl+a d`	Detach from current session

Window Management

Command	Description
`Ctrl+a c`	Create a new window
`Ctrl+a n`	Switch to next window
`Ctrl+a p`	Switch to previous window
`Ctrl+a A`	Rename current window
`Ctrl+a w`	List all windows
`Ctrl+a 0-9`	Switch to window by number
`Ctrl+a "`	Show interactive window list
`Ctrl+a k`	Kill current window

Split Regions

Command	Description
`Ctrl+a S`	Split horizontally
`Ctrl+a \|`	Split vertically
`Ctrl+a Tab`	Switch to next region
`Ctrl+a X`	Close current region
`Ctrl+a Q`	Close all regions except current
`Ctrl+a :resize 20`	Resize current region to 20 lines

Copy Mode

Command	Description
`Ctrl+a [`	Enter copy/scrollback mode
`Space`	Start/end selection (in copy mode)
`Enter`	Copy selection and exit copy mode
`Ctrl+a ]`	Paste copied text
`h/j/k/l`	Navigate in copy mode (vi keys)
`Ctrl+u / Ctrl+d`	Scroll half-page up/down in copy mode
`/search`	Search forward in copy mode
`?search`	Search backward in copy mode

Configuration

Command	Description
`defscrollback 10000`	Set scrollback buffer size in .screenrc
`startup_message off`	Disable splash screen in .screenrc
`shell /bin/zsh`	Set default shell in .screenrc
`hardstatus alwayslastline '%H \| %w'`	Configure status bar in .screenrc
`caption always '%n %t'`	Show window caption in .screenrc
`bind j focus down`	Custom key binding in .screenrc

Key Bindings

Command	Description
`Ctrl+a ?`	Show all key bindings
`Ctrl+a :`	Enter command mode
`Ctrl+a a`	Send literal Ctrl+a to the terminal
`Ctrl+a H`	Toggle logging of current window to file
`Ctrl+a M`	Monitor window for activity
`Ctrl+a _`	Monitor window for silence
`Ctrl+a Ctrl+l`	Redraw/refresh the screen

Common Workflows

Command	Description
`screen -dmS bg-job bash -c 'long-task.sh'`	Start a detached session running a command
`screen -S work -X stuff 'ls\n'`	Send a command to a named session
`screen -wipe`	Remove dead sessions from the list
`Ctrl+a :sessionname newname`	Rename the current session
`screen -S session -p 0 -X quit`	Kill a specific session by name
`Ctrl+a L`	Toggle login mode for current window
`screen -r -d`	Force detach and reattach (steal session)

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