TMUX(1) General Commands Manual TMUX(1) NAME tmux – terminal multiplexer SYNOPSIS tmux [-28dqUuv] [-f file] [-L socket-name] [-S socket-path] [command [flags]] DESCRIPTION tmux is a terminal multiplexer: it enables a number of terminals to be accessed and controlled from a single terminal. tmux runs as a server-client system. A server holds a number of sessions, each of which may have a number of windows linked to it. A server is started automatically when the first session is created and exits when all the sessions it contains are destroyed. A window may be split on screen into one or more panes, each of which is a separate terminal. Any number of clients may connect to a session, or the server may be controlled by issuing commands with tmux. Communication takes place through a socket, by default placed in /tmp. The options are as follows: -2 Force tmux to assume the terminal supports 256 colours. -8 Like -2, but indicates that the terminal supports 88 colours. -d Force tmux to assume the terminal supports default colours. -f file Specify an alternative configuration file. By default, tmux loads the system configuration file from /etc/tmux.conf, if present, then looks for a user configuration file at ~/.tmux.conf. The configuration file is a set of tmux commands which are executed in sequence when the server is first started. -L socket-name tmux stores the server socket in a directory under /tmp; the default socket is named default. This option allows a different socket name to be specified, allowing several independent tmux servers to be run. Unlike -S a full path is not necessary: the sockets are all created in the same directory. If the socket is accidentally removed, the SIGUSR1 signal may be sent to the tmux server process to recreate it. -q Prevent the server sending various informational messages, for example when window flags are altered. -S socket-path Specify a full alternative path to the server socket. If -S is specified, the default socket directory is not used and any -L flag is ignored. -U Unlock the server. -u tmux attempts to guess if the terminal is likely to support UTF-8 by checking the first of the LC_ALL, LC_CTYPE and LANG environment variables to be set for the string "UTF-8". This is not always correct: the -u flag explicitly informs tmux that UTF-8 is supported. If the server is started from a client passed -u or where UTF-8 is detected, the utf8 and status-utf8 options are enabled in the global window and session options respectively. -v Request verbose logging. This option may be specified multiple times for increasing verbosity. Log messages will be saved into tmux-client-PID.log and tmux-server-PID.log files in the current directory, where PID is the PID of the server or client process. command [flags] This specifies one of a set of commands used to control tmux, as described in the following sections. If no command and flags are specified, the new-session command is assumed. QUICK START To create a new tmux session running vi(1): $ tmux new-session vi Most commands have a shorter form, known as an alias. For new-session, this is new: $ tmux new vi Alternatively, the shortest unambiguous form of a command is accepted. If there are several options, they are listed: $ tmux n ambiguous command: n, could be: new-session, new-window, next-window Within an active session, a new window may be created by typing ‘C-b c’ (Ctrl followed by the ‘b’ key followed by the ‘c’ key). Windows may be navigated with: ‘C-b 0’ (to select window 0), ‘C-b 1’ (to select window 1), and so on; ‘C-b n’ to select the next window; and ‘C-b p’ to select the previous window. A session may be detached using ‘C-b d’ and reattached with: $ tmux attach-session Typing ‘C-b ?’ lists the current key bindings in the current window; up and down may be used to navigate the list or ‘q’ to exit from it. Commands to be run when the tmux server is started may be placed in the ~/.tmux.conf configuration file. Common examples include: Changing the default prefix key: set-option -g prefix C-a unbind-key C-b bind-key C-a send-prefix Turning the status line off, or changing its colour: set-option -g status off set-option -g status-bg blue Setting other options, such as the default command, or locking after 30 minutes of inactivity: set-option -g default-command "exec /bin/ksh" set-option -g lock-after-time 1800 Creating new key bindings: bind-key b set-option status bind-key / command-prompt "split-window 'exec man %%'" KEY BINDINGS tmux may be controlled from an attached client by using a key combination of a prefix key, ‘C-b’ (Ctrl-b) by default, followed by a command key. Some of the default key bindings include: c Create new window. d Detach current client. l Move to last (previously selected) window in the current session. n Change to next window in the current session. p Change to previous window in the current session. t Display a large clock. ? List current key bindings. A complete list may be obtained with the list-keys command (bound to ‘?’ by default). Key bindings may be changed with the bind-key and unbind-key commands. HISTORY tmux maintains a configurable history buffer for each window. By default, up to 2000 lines are kept; this can be altered with the history-limit option (see the set-option command below). MODES A tmux window may be in one of several modes. The default permits direct access to the terminal attached to the window. The others are: output mode This is entered when a command which produces output, such as list-keys, is executed from a key binding. scroll mode This is entered with the scroll-mode command (bound to ‘=’ by default) and permits the window history buffer to be inspected. copy mode This permits a section of a window or its history to be copied to a paste buffer for later insertion into another window. This mode is entered with the copy-mode command, bound to [‘’ by default. The keys available depend on whether emacs or vi mode is selected (see the mode-keys option). The following keys are supported as appropriate for the mode: Function vi emacs Start of line 0 C-a Back to indentation ^ M-m Clear selection Escape C-g Copy selection Enter M-w Cursor down j Down End of line $ C-e Cursor left h Left Next page C-f Page down Next word w M-f Previous page C-u Page up Previous word b M-b Quit mode q Escape Cursor right l Right Start selection Space C-Space Cursor up k Up Delete to end of line D C-k Paste buffer p C-y These key bindings are defined in a set of named tables: vi-edit and emacs-edit for keys used when line editing at the command prompt; vi-choice and emacs-choice for keys used when choosing from lists (such as produced by the window-choose command) or in output mode; and vi-copy and emacs-copy used in copy and scroll modes. The tables may be viewed with the list-keys command and keys modified or removed with bind-key and unbind-key. The paste buffer key pastes the first line from the top paste buffer on the stack. BUFFERS tmux maintains a stack of paste buffers for each session. Up to the value of the buffer-limit option are kept; when a new buffer is added, the buffer at the bottom of the stack is removed. Buffers may be added using copy-mode or the set-buffer command, and pasted into a window using the paste-buffer command. OPTIONS The appearance and behaviour of tmux may be modified by changing the value of various options. There are two types of option: session options and window options. Each individual session may have a set of session options, and there is a separate set of global session options. Sessions which do not have a particular option configured inherit the value from the global session options. Session options are set or unset with the set-option command and may be listed with the show-options command. The available session options are listed under the set-option command. Similarly, a set of window options is attached to each window, and there is a set of global window options from which any unset options are inherited. Window options are altered with the set-window-option command and can be listed with the show-window-options command. All window options are documented with the set-window-option command. PANES AND LAYOUTS Each window displayed by tmux may be split into one or more panes; each pane takes up a certain area of the display and is a separate terminal. A window may be split into panes using the split-window command. Windows may be split horizontally (with the -h flag) or vertically. Panes may be resized with the resize-pane command (bound to ‘C-up’, ‘C-down’ ‘C-left’ and ‘C-right’ by default), the current pane may be changed with the up-pane and down-pane commands and the rotate-window and swap-pane commands may be used to swap panes without changing their position. Panes are numbered beginning from zero in the order they are created. A number of preset layouts are available. These may be selected with the select-layout command or cycled with next-layout (bound to ‘C-space’ by default); once a layout is chosen, panes within it may be moved and resized as normal. The following layouts are supported: even-horizontal Panes are spread out evenly from left to right across the window. even-vertical Panes are spread evenly from top to bottom. main-horizontal A large (main) pane is shown at the top of the window and the remaining panes are spread from left to right in the leftover space at the bottom. Use the main-pane-height window option to specify the height of the top pane. main-vertical Similar to main-horizontal but the large pane is placed on the left and the others spread from top to bottom along the right. See the main-pane-width window option. STATUS LINE tmux includes an optional status line which is displayed in the bottom line of each terminal. By default, the status line is enabled (it may be disabled with the status session option) and contains, from left-to- right: the name of the current session in square brackets; the window list; the current window title in double quotes; and the time and date. The status line is made of three parts: configurable left and right sections (which may contain dynamic content such as the time or output from a shell command, see the status-left, status-left-length, status-right, and status-right-length options below), and a central window list. The window list shows the index, name and (if any) flag of the windows present in the current session in ascending numerical order. The flag is one of the following symbols appended to the window name: Symbol Meaning * Denotes the current window. - Marks the last window (previously selected). # Window is monitored and activity has been detected. ! A bell has occurred in the window. + Window is monitored for content and it has appeared. The # symbol relates to the monitor-activity and + to the monitor-content window options. The window name is printed in inverted colours if an alert (bell, activity or content) is present. The colour and attributes of the status line may be configured, the entire status line using the status-attr, status-fg and status-bg session options and individual windows using the window-status-attr, window-status-fg and window-status-bg window options. The status line is automatically refreshed at interval if it has changed, the interval may be controlled with the status-interval session option. COMMANDS This section contains a list of the commands supported by tmux. Most commands accept the optional -t argument with one of target-client, target-session target-window, or target-pane. These specify the client, session, window or pane which a command should affect. target-client is the name of the pty(4) file to which the client is connected, for example either of /dev/ttyp1 or ttyp1 for the client attached to /dev/ttyp1. If no client is specified, the current client is chosen, if possible, or an error is reported. Clients may be listed with the list-clients command. target-session is either the name of a session (as listed by the list-sessions command) or the name of a client with the same syntax as target-client, in which case the session attached to the client is used. When looking for the session name, tmux initially searches for an exact match; if none is found, the session names are checked for any for which target-session is a prefix or for which it matches as an fnmatch(3) pattern. If a single match is found, it is used as the target session; multiple matches produce an error. If a session is omitted, the current session is used if available; if no current session is available, the most recently created is chosen. target-window specifies a window in the form session:window. session follows the same rules as for target-session, and window is looked for in order: as a window index, for example mysession:1; as an exact window name, such as mysession:mywindow; then as an fnmatch(3) pattern or the start of a window name, such as mysession:mywin* or mysession:mywin. An empty window name specifies the next unused index if appropriate (for example the new-window and link-window commands) otherwise the current window in session is chosen. When the argument does not contain a colon, tmux first attempts to parse it as window; if that fails, an attempt is made to match a session. target-pane takes a similar form to target-window but with the optional addition of a period followed by a pane index, for example: mysession:mywindow.1. If the pane index is omitted, the currently active pane in the specified window is used. If neither a colon nor period appears, tmux first attempts to use the argument as a pane index; if that fails, it is looked up as for target-window. Multiple commands may be specified together as part of a command sequence. Each command should be separated by spaces and a semicolon; commands are executed sequentially from left to right. A literal semicolon may be included by escaping it with a backslash (for example, when specifying a command sequence to bind-key). Examples include: refresh-client -t/dev/ttyp2 rename-session -tfirst newname set-window-option -t:0 monitor-activity on new-window ; split-window -d bind-key D detach-client \; lock-server The following commands are available: attach-session [-d] [-t target-session] (alias: attach) If run from outside tmux, create a new client in the current terminal and attach it to target-session. If used from inside, switch the current client. If -d is specified, any other clients attached to the session are detached. If no server is started, attach-session will attempt to start it; this will fail unless sessions are created in the configuration file. bind-key [-cnr] [-t key-table] key command [arguments] (alias: bind) Bind key key to command. Keys may be specified prefixed with ‘C-’ or ‘^’ for Ctrl keys, or ‘M-’ for Alt (meta) keys. By default (without -t) the primary key bindings are modified (those normally activated with the prefix key); in this case, if -n is specified, it is not necessary to use the prefix key, command is bound to key alone. The -r flag indicates this key may repeat, see the repeat-time option. If -t is present, key is bound in key-table: the binding for command mode with -c or for normal mode without. To view the default bindings and possible commands, see the list-keys command. break-pane [-d] [-t target-pane] (alias: breakp) Break target-pane off from its containing window to make it the only pane in a new window. If -d is given, the new window does not become the current window. choose-session [-t target-window] Put a window into session choice mode, where the session for the current client may be selected interactively from a list. This command works only from inside tmux. choose-window [-t target-window] Put a window into window choice mode, where the window for the session attached to the current client may be selected interactively from a list. This command works only from inside tmux. clear-history [-t target-pane] (alias: clearhist) Remove and free the history for the specified pane. clock-mode [-t target-window] Display a large clock. command-prompt [-t target-client] [template] Open the command prompt in a client. This may be used from inside tmux to execute commands interactively. If template is specified, it is used as the command; any %% in the template will be replaced by what is entered at the prompt. confirm-before [-t target-client] command (alias: confirm) Ask for confirmation before executing command. This command works only from inside tmux. copy-buffer [-a src-index] [-b dst-index] [-s src-session] [-t dst-session] (alias: copyb) Copy a session paste buffer to another session. If no sessions are specified, the current one is used instead. copy-mode [-u] [-t target-window] Enter copy mode. The -u option scrolls one page up. delete-buffer [-b buffer-index] [-t target-session] (alias: deleteb) Delete the buffer at buffer-index, or the top buffer if not specified. detach-client [-t target-client] (alias: detach) Detach the current client if bound to a key, or the specified client with -t. display-message [-t target-client] [message] (alias: display) Display a message (see the status-left option below) in the status line. down-pane [-t target-pane] (alias: downp) Move down a pane. find-window [-t target-window] match-string (alias: findw) Search for the fnmatch(3) pattern match-string in window names, titles, and visible content (but not history). If only one window is matched, it'll be automatically selected, otherwise a choice list is shown. This command only works from inside tmux. has-session [-t target-session] (alias: has) Report an error and exit with 1 if the specified session does not exist. If it does exist, exit with 0. if-shell shell-command command (alias: if) Execute command if shell-command returns success. kill-pane [-t target-pane] (alias: killp) Destroy the given pane. If no panes remain in the containing window, it is also destroyed. kill-server Kill the tmux server and clients and destroy all sessions. kill-session [-t target-session] Destroy the given session, closing any windows linked to it and no other sessions, and detaching all clients attached to it. kill-window [-t target-window] (alias: killw) Kill the current window or the window at target-window, removing it from any sessions to which it is linked. last-window [-t target-session] (alias: last) Select the last (previously selected) window. If no target-session is specified, select the last window of the current session. link-window [-dk] [-s src-window] [-t dst-window] (alias: linkw) Link the window at src-window to the specified dst-window. If dst-window is specified and no such window exists, the src-window is linked there. If -k is given and dst-window exists, it is killed, otherwise an error is generated. If -d is given, the newly linked window is not selected. list-buffers [-t target-session] (alias: lsb) List the buffers in the given session. list-clients (alias: lsc) List all clients attached to the server. list-commands (alias: lscm) List the syntax of all commands supported by tmux. list-keys [-t key-table] (alias: lsk) List all key bindings. Without -t the primary key bindings - those executed when preceded by the prefix key - are printed. Keys bound without the prefix key (see bind-key -n) are enclosed in square brackets. With -t, the key bindings in key-table are listed; this may be one of: vi-edit, emacs-edit, vi-choice, emacs-choice, vi-copy or emacs-copy. list-sessions (alias: ls) List all sessions managed by the server. list-windows [-t target-session] (alias: lsw) List windows in the current session or in target-session. load-buffer [-b buffer-index] [-t target-session] path (alias: loadb) Load the contents of the specified paste buffer from path. lock-server (alias: lock) Lock the server until a password is entered. move-window [-d] [-s src-window] [-t dst-window] (alias: movew) This is similar to link-window, except the window at src-window is moved to dst-window. new-session [-d] [-n window-name] [-s session-name] [command] (alias: new) Create a new session with name session-name. The new session is attached to the current terminal unless -d is given. window-name and command are the name of and command to execute in the initial window. new-window [-dk] [-n window-name] [-t target-window] [command] (alias: neww) Create a new window. If -d is given, the session does not make the new window the current window. target-window represents the window to be created; if the target already exists an error is shown, unless the -k flag is used, in which case it is destroyed. command is the command to execute. If command is not specified, the default command is used. The TERM environment variable must be set to “screen” for all programs running inside tmux. New windows will automatically have “TERM=screen” added to their environment, but care must be taken not to reset this in shell start-up files. next-layout [-t target-window] (alias: nextl) Move a window to the next layout and rearrange the panes to fit. next-window [-a] [-t target-session] (alias: next) Move to the next window in the session. If -a is used, move to the next window with a bell, activity or content alert. paste-buffer [-dr] [-b buffer-index] [-t target-window] (alias: pasteb) Insert the contents of a paste buffer into the current window. With -d, also delete the paste buffer from the stack. When output, any linefeed (LF) characters in the paste buffer are replaced with carriage returns (CR). This translation may be disabled with the -r flag. previous-window [-a] [-t target-session] (alias: prev) Move to the previous window in the session. With -a, move to the previous window with a bell, activity or content alert. refresh-client [-t target-client] (alias: refresh) Refresh the current client if bound to a key, or a single client if one is given with -t. rename-session [-t target-session] new-name (alias: rename) Rename the session to new-name. rename-window [-t target-window] new-name (alias: renamew) Rename the current window, or the window at target-window if specified, to new-name. resize-pane [-DLRU] [-t target-pane] [adjustment] (alias: resizep) Resize a pane, upward with -U (the default), downward with -D, to the left with -L and to the right with -R. The adjustment is given in lines or cells (the default is 1). respawn-window [-k] [-t target-window] [command] (alias: respawnw) Reactive a window in which the command has exited (see the remain-on-exit window option). If command is not given, the command used when the window was created is executed. The window must be already inactive, unless -k is given, in which case any existing command is killed. rotate-window [-DU] [-t target-window] (alias: rotatew) Rotate the positions of the panes within a window, either upward (numerically lower) with -U or downward (numerically higher). save-buffer [-a] [-b buffer-index] [-t target-session] path (alias: saveb) Save the contents of the specified paste buffer to path. The -a option appends to rather than overwriting the file. scroll-mode [-u] [-t target-window] Enter scroll mode. The -u has the same meaning as in the copy-mode command. select-layout [-t target-window] [layout-name] (alias: selectl) Choose a specific layout for a window. If layout-name is not given, the last layout used (if any) is reapplied. select-pane [-t target-pane] (alias: selectp) Make pane target-pane the active pane in window target-window. select-prompt [-t target-client] Open a prompt inside target-client allowing a window index to be entered interactively. select-window [-t target-window] (alias: selectw) Select the window at target-window. send-keys [-t target-window] key ... (alias: send) Send a key or keys to a window. Each argument key is the name of the key (such as ‘C-a’ or ‘npage’ ) to send; if the string is not recognised as a key, it is sent as a series of characters. All arguments are sent sequentially from first to last. send-prefix [-t target-window] Send the prefix key to a window as if it was pressed. server-info (alias: info) Show server information and terminal details. set-buffer [-b buffer-index] [-t target-session] data (alias: setb) Set the contents of the specified buffer to data. set-option [-gu] [-t target-session] option value (alias: set) Set a session option. If -g is specified, the global session option is set. The -u flag unsets an option, so a session inherits the option from the global options - it is not possible to unset a global option. Available session options are: bell-action [any | none | current] Set action on window bell. any means a bell in any window linked to a session causes a bell in the current window of that session, none means all bells are ignored and current means only bell in windows other than the current window are ignored. buffer-limit number Set the number of buffers kept for each session; as new buffers are added to the top of the stack, old ones are removed from the bottom if necessary to maintain this maximum length. default-command command Set the command used for new windows (if not specified when the window is created) to command. The default is an empty string, which instructs tmux to create a login shell using the SHELL environment variable or, if it is unset, the user's shell returned by getpwuid(3). default-path path Set the default working directory for processes created from keys, or interactively from the prompt. The default is the current working directory when the server is started. default-terminal terminal Set the default terminal for new windows created in this session - the default value of the TERM environment variable. For tmux to work correctly, this must be set to ‘screen’ or a derivative of it. display-time time Set the amount of time for which status line messages are displayed. time is in milliseconds. history-limit lines Set the maximum number of lines held in window history. This setting applies only to new windows - existing window histories are not resized and retain the limit at the point they were created. lock-after-time number Lock the server after number seconds of inactivity. The default is off (set to 0). This has no effect as a session option; it must be set as a global option using -g. message-attr attributes Set status line message attributes, where attributes is either default or a comma-delimited list of one or more of: bright (or bold), dim, underscore, blink, reverse, hidden, or italics. message-bg colour Set status line message background colour, where colour is one of: black, red, green, yellow, blue, magenta, cyan, white or default. message-fg colour Set status line message foreground colour. prefix key Set the current prefix key. repeat-time time Allow multiple commands to be entered without pressing the prefix-key again in the specified time milliseconds (the default is 500). Whether a key repeats may be set when it is bound using the -r flag to bind-key. Repeat is enabled for the default keys bound to the resize-pane command. set-remain-on-exit [on | off] Set the remain-on-exit window option for any windows first created in this session. set-titles [on | off] Attempt to set the window title using the \e]2;...\007 xterm code and the terminal appears to be an xterm. This option is off by default. Note that elinks will only attempt to set the window title if the STY environment variable is set. status [on | off] Show or hide the status line. status-attr attributes Set status line attributes. status-bg colour Set status line background colour. status-fg colour Set status line foreground colour. status-interval interval Update the status bar every interval seconds. By default, updates will occur every 15 seconds. A setting of zero disables redrawing at interval. status-justify [left | centre | right] Set the position of the window list component of the status line: left, centre or right justified. status-keys [vi | emacs] Use vi or emacs-style key bindings in the status line, for example at the command prompt. Defaults to emacs. status-left string Display string to the left of the status bar. string will be passed through strftime(3) before being used. By default, the session name is shown. string may contain any of the following special character pairs: Character pair Replaced with #(command) First line of command's output #H Hostname of local host #I Current window index #P Current pane index #S Session name #T Current window title #W Current window name ## A literal ‘#’ Where appropriate, these may be prefixed with a number to specify the maximum length, for example ‘#24T’. By default, UTF-8 in string is not interpreted, to enable UTF-8, use the status-utf8 option. status-left-length length Set the maximum length of the left component of the status bar. The default is 10. status-right string Display string to the right of the status bar. By default, the date and time will be shown. As with status-left, string will be passed to strftime(3), character pairs are replaced, and UTF-8 is dependent on the status-utf8 option. status-right-length length Set the maximum length of the right component of the status bar. The default is 40. status-utf8 [on | off] Instruct tmux to treat top-bit-set characters in the status-left and status-right strings as UTF-8; notably, this is important for wide characters. This option defaults to off. visual-activity [on | off] If on, display a status line message when activity occurs in a window for which the monitor-activity window option is enabled. visual-bell [on | off] If this option is on, a message is shown on a bell instead of it being passed through to the terminal (which normally makes a sound). Also see the bell-action option. visual-content [on | off] Like visual-activity, display a message when content is present in a window for which the monitor-content window option is enabled. set-password [-c] password (alias: pass) Set the server password. If the -c option is given, a pre- encrypted password may be specified. By default, the password is blank, thus any entered password will be accepted when unlocking the server (see the lock-server command). To prevent variable expansion when an encrypted password is read from a configuration file, enclose it in single quotes ('). set-window-option [-gu] [-t target-window] option value (alias: setw) Set a window option. The -g and -u flags work similarly to the set-option command. Supported window options are: aggressive-resize [on | off] Aggressively resize the chosen window. This means that tmux will resize the window to the size of the smallest session for which it is the current window, rather than the smallest session to which it is attached. The window may resize when the current window is changed on another sessions; this option is good for full-screen programs which support SIGWINCH and poor for interactive programs such as shells. automatic-rename [on | off] Control automatic window renaming. When this setting is enabled, tmux will attempt - on supported platforms - to rename the window to reflect the command currently running in it. This flag is automatically disabled for an individual window when a name is specified at creation with new-window or new-session, or later with rename-window. It may be switched off globally with: set-window-option -g automatic-rename off clock-mode-colour colour Set clock colour. clock-mode-style [12 | 24] Set clock hour format. force-height height force-width width Prevent tmux from resizing a window to greater than width or height. A value of zero restores the default unlimited setting. main-pane-width width main-pane-height height Set the width or height of the main (left or top) pane in the main-horizontal or main-vertical layouts. mode-attr attributes Set window modes attributes. mode-bg colour Set window modes background colour. mode-fg colour Set window modes foreground colour. mode-keys [vi | emacs] Use vi or emacs-style key bindings in scroll, copy and choice modes. Key bindings default to emacs. mode-mouse [on | off] Mouse state in modes. If on, tmux will respond to mouse clicks by moving the cursor in copy mode or selecting an option in choice mode. monitor-activity [on | off] Monitor for activity in the window. Windows with activity are highlighted in the status line. monitor-content match-string Monitor content in the window. When fnmatch(3) pattern match-string appears in the window, it is highlighted in the status line. remain-on-exit [on | off] A window with this flag set is not destroyed when the program running in it exits. The window may be reactivated with the respawn-window command. utf8 [on | off] Instructs tmux to expect UTF-8 sequences to appear in this window. window-status-attr attributes Set status line attributes for a single window. window-status-bg colour Set status line background colour for a single window. window-status-fg colour Set status line foreground colour for a single window. window-status-current-attr attributes Set status line attributes for the currently active window. window-status-current-bg colour Set status line background colour for the currently active window. window-status-current-fg colour Set status line foreground colour for the currently active window. xterm-keys [on | off] If this option is set, tmux will generate xterm(1) -style function key sequences; these have a number included to indicate modifiers such as Shift, Alt or Ctrl. show-buffer [-b buffer-index] [-t target-session] (alias: showb) Display the contents of the specified buffer. show-options [-g] [-t target-session] (alias: show) Show the session options for target session, or the global session options with -g. show-window-options [-g] [-t target-window] (alias: showw) List the window options for target-window, or the global window options if -g is used. source-file path (alias: source) Execute commands from path. split-window [-dhv] [-l size | -p percentage] [-t target-window] [command] (alias: splitw) Creates a new pane by splitting the active pane: -h does a horizontal split and -v a vertical split; if neither is specified, -v is assumed. The -l and -p options specify the size of the new window in lines (for vertical split) or in cells (for horizontal split), or as a percentage, respectively. All other options have the same meaning as in the new-window command. start-server (alias: start) Start the tmux server, if not already running, without creating any sessions. suspend-client [-c -target-client] (alias: suspendc) Suspend a client by sending SIGTSTP (tty stop). swap-pane [-dDU] [-s src-pane] [-t dst-pane] (alias: swapp) Swap two panes. If -U is used and no source pane is specified with -s, dst-pane is swapped with the previous pane (before it numerically); -D swaps with the next pane (after it numerically). swap-window [-d] [-s src-window] [-t dst-window] (alias: swapw) This is similar to link-window, except the source and destination windows are swapped. It is an error if no window exists at src-window. switch-client [-c target-client] [-t target-session] (alias: switchc) Switch the current session for client target-client to target-session. unbind-key [-cn] [-t key-table] key (alias: unbind) Unbind the command bound to key. Without -t the primary key bindings are modified; in this case, if -n is specified, the command bound to key without a prefix (if any) is removed. If -t is present, key in key-table is unbound: the binding for command mode with -c or for normal mode without. unlink-window [-k] [-t target-window] (alias: unlinkw) Unlink target-window. Unless -k is given, a window may be unlinked only if it is linked to multiple sessions - windows may not be linked to no sessions; if -k is specified and the window is linked to only one session, it is unlinked and destroyed. up-pane [-t target-pane] (alias: upp) Move up a pane. FILES ~/.tmux.conf Default tmux configuration file. /etc/tmux.conf System-wide configuration file. SEE ALSO pty(4) AUTHORS Nicholas Marriott ⟨nicm@users.sourceforge.net⟩ BSD November 29, 2024 BSD