path: root/tmux.cat1

TMUX(1)                    OpenBSD Reference Manual                    TMUX(1)

NNAAMMEE
     ttmmuuxx - terminal multiplexer

SSYYNNOOPPSSIISS
     ttmmuuxx [--2288ddqqUUuuvv] [--ff _f_i_l_e] [--LL _s_o_c_k_e_t_-_n_a_m_e] [--SS _s_o_c_k_e_t_-_p_a_t_h]
          [_c_o_m_m_a_n_d [_f_l_a_g_s]]

DDEESSCCRRIIPPTTIIOONN
     ttmmuuxx is a terminal multiplexer; it enables a number of terminals to be
     accessed and controlled from a single terminal.

     ttmmuuxx runs as a server-client system.  A server is created automatically
     when necessary and holds a number of _s_e_s_s_i_o_n_s, each of which may have a
     number of _w_i_n_d_o_w_s linked to it.  A window may be split on screen into one
     or more _p_a_n_e_s, each of which is a separate terminal.  Any number of
     _c_l_i_e_n_t_s may connect to a session, or the server may be controlled by is-
     suing commands with ttmmuuxx.  Communication takes place through a socket, by
     default placed in _/_t_m_p.

     The options are as follows:

     --22            Force ttmmuuxx to assume the terminal supports 256 colours.

     --88            Like --22, indicates the terminal supports 88 colours.

     --dd            Force ttmmuuxx to assume the terminal supports default colours.

     --ff _f_i_l_e       Specify an alternative configuration file.  By default,
                   ttmmuuxx will look for a config file at _~_/_._t_m_u_x_._c_o_n_f.  The con-
                   figuration file is a set of ttmmuuxx commands which are execut-
                   ed in sequence when the server is first started.

     --qq            Prevent the server sending various information messages,
                   for example when window flags are altered.

     --LL _s_o_c_k_e_t_-_n_a_m_e
                   ttmmuuxx stores the server socket in a directory under _/_t_m_p;
                   the default socket is named _d_e_f_a_u_l_t.  This option allows a
                   different socket name to be specified, allowing several in-
                   dependent ttmmuuxx servers to be run.  Unlike --SS a full path is
                   not necessary: the sockets are all created in the same di-
                   rectory.

     --SS _s_o_c_k_e_t_-_p_a_t_h
                   Specify a full alternative path to the server socket.  If
                   --SS is specified, the default socket directory is not used
                   and any --LL flag is ignored.

     --UU            Unlock the server.

     --uu            Instruct ttmmuuxx that the terminal support UTF-8.

     --vv            Request verbose logging.  This option may be specified mul-
                   tiple times for increasing verbosity.  Log messages will be
                   saved into _t_m_u_x_-_c_l_i_e_n_t_-_P_I_D_._l_o_g and _t_m_u_x_-_s_e_r_v_e_r_-_P_I_D_._l_o_g
                   files in the current directory, where _P_I_D is the pid of the
                   server or client process.

     _c_o_m_m_a_n_d [_f_l_a_g_s]
                   This specifies one of a set of commands used to control
                   ttmmuuxx, and described in the following sections.  If no com-
                   mand and flags is specified, the nneeww--sseessssiioonn command is as-
                   sumed.

QQUUIICCKK SSTTAARRTT
     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 nneeww:

           $ 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'
     (ctrl-b, known as the prefix 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.

KKEEYY BBIINNDDIINNGGSS
     ttmmuuxx 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:

     `d'     Detach current client.
     `c'     Create new window.
     `n'     Change to next window in the current session.
     `p'     Change to previous window in the current session.
     `l'     Move to last (previously selected) window in the current session.
     `t'     Display a large clock.
     `?'     List current key bindings.

     A complete list may be obtained with the lliisstt--kkeeyyss command (bound to `?'
     by default).  Key bindings may be changed with the bbiinndd--kkeeyy and uunnbbiinndd--
     kkeeyy commands.

HHIISSTTOORRYY
     ttmmuuxx maintains a configurable history buffer for each window.  By de-
     fault, up to 2000 lines are kept, this can be altered with the hhiissttoorryy--
     lliimmiitt option (see the sseett--ooppttiioonn command below).

MMOODDEESS
     A ttmmuuxx window may be in one of several modes.  The default permits direct
     access to the terminal attached to the window.  The others are:

     _o_u_t_p_u_t _m_o_d_e
             This is entered when a command which produces output, such as
             lliisstt--kkeeyyss, is executed from a key binding.

     _s_c_r_o_l_l _m_o_d_e
             This is entered with the ssccrroollll--mmooddee command (bound to `=' by de-
             fault) and permits the window history buffer to be inspected.

     _c_o_p_y _m_o_d_e
             This permits a section of a window or its history to be copied to
             a _p_a_s_t_e _b_u_f_f_e_r for later insertion into another window.  This
             mode is entered with the ccooppyy--mmooddee command, bound to `[' by de-
             fault.

     The keys available depend on whether emacs(1) or vi(1) mode is selected
     (see the mmooddee--kkeeyyss option).  The following keys are supported as appro-
     priate for the mode:

           FFuunnccttiioonn                vvii          eemmaaccss
           Start of line           0 or ^      C-a
           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

BBUUFFFFEERRSS
     ttmmuuxx maintains a stack of _p_a_s_t_e _b_u_f_f_e_r_s for each session.  Up to the val-
     ue of the bbuuffffeerr--lliimmiitt option are kept; when a new buffer is added, the
     buffer at the bottom of the stack is removed.  Buffers may be added using
     ccooppyy--mmooddee or the sseett--bbuuffffeerr command, and pasted into a window using the
     ppaassttee--bbuuffffeerr command.

PPAANNEESS AANNDD LLAAYYOOUUTTSS
     Each window displayed by ttmmuuxx may be split into one or more _p_a_n_e_s; each
     pane takes up a certain area of the display and is a separate terminal.
     A window may be split into panes using the sspplliitt--wwiinnddooww command.

     Panes are numbered beginning from zero; in horizontal layouts zero is the
     leftmost pane and in vertical the topmost.

     Panes may be arranged using several layouts.  The layout may be cycled
     with the nneexxtt--llaayyoouutt command (bound to `C-space' by default), the current
     pane may be changed with the uupp--ppaannee and ddoowwnn--ppaannee commands and the
     rroottaattee--wwiinnddooww and sswwaapp--ppaannee commands may be used to swap panes without
     changing the window layout.

     The following layouts are supported:

     mmaannuuaall  Manual layout splits windows vertically (running across); only
             with this layout may panes be resized using the rreessiizzee--ppaannee com-
             mand.

     aaccttiivvee--oonnllyy
             Only the active pane is shown - all other panes are hidden.

     eevveenn--hhoorriizzoonnttaall
             Panes are spread out evenly from left to right across the window.

     eevveenn--vveerrttiiccaall
             Panes are spread evenly from top to bottom.

     mmaaiinn--vveerrttiiccaall
             A large (81 column) pane is shown on the left of the window and
             the remaining panes are spread from top to bottom in the leftover
             space to the right.

CCOOMMMMAANNDDSS
     This section contains a list of the commands supported by ttmmuuxx.  Most
     commands accept the optional --tt argument with one of _t_a_r_g_e_t_-_c_l_i_e_n_t,
     _t_a_r_g_e_t_-_s_e_s_s_i_o_n or _t_a_r_g_e_t_-_w_i_n_d_o_w.  These specify the client, session or
     window which a command should affect.  _t_a_r_g_e_t_-_c_l_i_e_n_t is the name of the
     pty(4) file to which the client is connected, for example _/_d_e_v_/_t_t_y_p_1.
     Clients may be listed with the lliisstt--cclliieennttss command.

     _t_a_r_g_e_t_-_s_e_s_s_i_o_n is either the name of a session (as listed by the lliisstt--
     sseessssiioonnss command); or the name of a client as for _t_a_r_g_e_t_-_c_l_i_e_n_t, in this
     case, the session attached to the client is used.  An fnmatch(3) pattern
     may be used to match the session name.  If a session is omitted when re-
     quired, ttmmuuxx attempts to use the current session; if no current session
     is available, the most recently created is chosen.  If no client is spec-
     ified, the current client is chosen, if possible, or an error is report-
     ed.

     _t_a_r_g_e_t_-_w_i_n_d_o_w specifies a window in the form _s_e_s_s_i_o_n:_i_n_d_e_x, for example
     mysession:1.  The session is in the same form as for _t_a_r_g_e_t_-_s_e_s_s_i_o_n.
     _s_e_s_s_i_o_n, _i_n_d_e_x or both may be omitted.  If _s_e_s_s_i_o_n is omitted, the same
     rules as for _t_a_r_g_e_t_-_s_e_s_s_i_o_n are followed; if _i_n_d_e_x is not present, the
     current window for the given session is used.  When the argument does not
     contain a colon (:), ttmmuuxx first attempts to parse it as window index; if
     that fails, an attempt is made to match a session or client name.

     Multiple commands may be specified together as part of a _c_o_m_m_a_n_d
     _s_e_q_u_e_n_c_e.  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 bbiinndd--kkeeyy).

     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:

     aattttaacchh--sseessssiioonn [--dd] [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n]
                   (alias: aattttaacchh)
             Create a new client in the current terminal and attach it to a
             session.  If --dd is specified, any other clients attached to the
             session are detached.

             If no server is started, aattttaacchh--sseessssiioonn will attempt to start it;
             this will fail unless sessions are created in the configuration
             file.

     bbiinndd--kkeeyy [--rr] _k_e_y _c_o_m_m_a_n_d [_a_r_g_u_m_e_n_t_s]
                   (alias: bbiinndd)
             Bind key _k_e_y to _c_o_m_m_a_n_d.  Keys may be specified prefixed with
             `C-' or `^' for ctrl keys, or `M-' for alt (meta) keys.  The --rr
             flag indicates this key may repeat, see the rreeppeeaatt--ttiimmee option.

     bbrreeaakk--ppaannee [--dd] [--pp _p_a_n_e_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
                   (alias: bbrreeaakkpp))
             Break the current pane off from its containing window to make it
             the only pane in a new window.  If --dd is given, the new window
             does not become the current window.

     cchhoooossee--sseessssiioonn [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
             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 ttmmuuxx.

     cchhoooossee--wwiinnddooww [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
             Put a window into window choice mode, where the window for the
             session attached to the current client may be selected interac-
             tively from a list.  This command works only from inside ttmmuuxx.

     cclloocckk--mmooddee [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
             Display a large clock.

     ccoommmmaanndd--pprroommpptt [--tt _t_a_r_g_e_t_-_c_l_i_e_n_t] [_t_e_m_p_l_a_t_e]
             Open the command prompt in a client.  This may be used from in-
             side ttmmuuxx to execute commands interactively.  If _t_e_m_p_l_a_t_e is
             specified, it is used as the command; any %% in the template will
             be replaced by what is entered at the prompt.

     ccoonnffiirrmm--bbeeffoorree [--tt _t_a_r_g_e_t_-_c_l_i_e_n_t] _c_o_m_m_a_n_d
                   (alias: ccoonnffiirrmm))
             Ask for confirmation before executing _c_o_m_m_a_n_d.  This command
             works only from inside ttmmuuxx.

     ccooppyy--bbuuffffeerr [--aa _s_r_c_-_i_n_d_e_x] [--bb _d_s_t_-_i_n_d_e_x] [--ss _s_r_c_-_s_e_s_s_i_o_n] [--tt
             _d_s_t_-_s_e_s_s_i_o_n]
                   (alias: ccooppyybb))
             Copy a session paste buffer to another session.  If no sessions
             are specified, the current one is used instead.

     ccooppyy--mmooddee [--uu] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
             Enter copy mode.  The --uu option scrolls one page up.

     ddeelleettee--bbuuffffeerr [--bb _b_u_f_f_e_r_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n]
                   (alias: ddeelleetteebb)
             Delete the buffer at _b_u_f_f_e_r_-_i_n_d_e_x, or the top buffer if not spec-
             ified.

     ddeettaacchh--cclliieenntt [--tt _t_a_r_g_e_t_-_c_l_i_e_n_t]
                   (alias: ddeettaacchh)
             Detach the current client if bound to a key, or the specified
             client with --tt.

     ddoowwnn--ppaannee [--pp _p_a_n_e_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
                   (alias: ddoowwnnpp)
             Move down a pane.

     ffiinndd--wwiinnddooww [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w] _m_a_t_c_h_-_s_t_r_i_n_g
                   (alias: ffiinnddww)
             Search for _m_a_t_c_h_-_s_t_r_i_n_g in window names, titles, and visible con-
             tent (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 ttmmuuxx.

     hhaass--sseessssiioonn [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n]
                   (alias: hhaass)
             Report an error and exit with 1 if the specified session does not
             exist.  If it does exist, exit with 0.

     kkiillll--ppaannee [--pp _p_a_n_e_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
                   (alias: kkiillllpp)
             Destroy the given pane.

     kkiillll--sseerrvveerr
             Kill the ttmmuuxx server and clients and destroy all sessions.

     kkiillll--sseessssiioonn [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n]
             Destroy the given session, closing any windows linked to it and
             no other sessions, and detaching all clients attached to it.

     kkiillll--wwiinnddooww [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
                   (alias: kkiillllww)
             Kill the current window or the window at _t_a_r_g_e_t_-_w_i_n_d_o_w, removing
             it from any sessions to which it is linked.

     llaasstt--wwiinnddooww [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n]
                   (alias: llaasstt)
             Select the last (previously selected) window.  If no _t_a_r_g_e_t_-
             _s_e_s_s_i_o_n is specified, select the last window of the current ses-
             sion.

     lliinnkk--wwiinnddooww [--ddkk] [--ss _s_r_c_-_w_i_n_d_o_w] [--tt _d_s_t_-_w_i_n_d_o_w]
                   (alias: lliinnkkww)
             Link the window at _s_r_c_-_w_i_n_d_o_w to the specified _d_s_t_-_w_i_n_d_o_w.  If
             _d_s_t_-_w_i_n_d_o_w is specified and no such window exists, the _s_r_c_-_w_i_n_d_o_w
             is linked there.  If --kk is given and _d_s_t_-_w_i_n_d_o_w exists, it is
             killed, otherwise an error is generated.  If --dd is given, the
             newly linked window is not selected.

     lliisstt--bbuuffffeerrss [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n]
                   (alias: llssbb)
             List the buffers in the given session.

     lliisstt--cclliieennttss
                   (alias: llsscc)
             List all clients attached to the server.

     lliisstt--ccoommmmaannddss
                   (alias: llssccmm)
             List the syntax of all commands supported by ttmmuuxx.

     lliisstt--kkeeyyss
                   (alias: llsskk)
             List all key bindings.

     lliisstt--sseessssiioonnss
                   (alias: llss)
             List all sessions managed by the server.

     lliisstt--wwiinnddoowwss [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n]
                   (alias: llssww)
             List windows in the current session or in _t_a_r_g_e_t_-_s_e_s_s_i_o_n.

     llooaadd--bbuuffffeerr [--bb _b_u_f_f_e_r_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n] _p_a_t_h
                   (alias: llooaaddbb)
             Load the contents of the specified paste buffer from _p_a_t_h.

     lloocckk--sseerrvveerr
                   (alias: lloocckk)
             Lock the server until a password is entered.

     mmoovvee--wwiinnddooww [--dd] [--ss _s_r_c_-_w_i_n_d_o_w] [--tt _d_s_t_-_w_i_n_d_o_w]
                   (alias: mmoovveeww)
             This is similar to lliinnkk--wwiinnddooww, except the window at _s_r_c_-_w_i_n_d_o_w
             is moved to _d_s_t_-_w_i_n_d_o_w.

     nneeww--sseessssiioonn [--dd] [--nn _w_i_n_d_o_w_-_n_a_m_e] [--ss _s_e_s_s_i_o_n_-_n_a_m_e] [_c_o_m_m_a_n_d]
                   (alias: nneeww)
             Create a new session with name _s_e_s_s_i_o_n_-_n_a_m_e.  The new session is
             attached to the current terminal unless --dd is given.  _w_i_n_d_o_w_-_n_a_m_e
             and _c_o_m_m_a_n_d are the name of and command to execute in the initial
             window.

     nneeww--wwiinnddooww [--dd] [--nn _w_i_n_d_o_w_-_n_a_m_e] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w] [_c_o_m_m_a_n_d]
                   (alias: nneewwww)
             Create a new window.  If --dd is given, the session does not make
             the new window the current window.  _t_a_r_g_e_t_-_w_i_n_d_o_w represents the
             window to be created.  _c_o_m_m_a_n_d is the command to execute.  If
             _c_o_m_m_a_n_d is not specified, the default command is used.

             The TERM environment variable must be set to ``screen'' for all
             programs running _i_n_s_i_d_e ttmmuuxx.  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.

     nneexxtt--llaayyoouutt [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
                   (alias: nneexxttll)
             Move a window to the next layout and rearrange the panes to fit.

     nneexxtt--wwiinnddooww [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n]
                   (alias: nneexxtt)
             Move to the next window in the session.

     ppaassttee--bbuuffffeerr [--dd] [--bb _b_u_f_f_e_r_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
                   (alias: ppaasstteebb)
             Insert the contents of a paste buffer into the current window.

     pprreevviioouuss--wwiinnddooww [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n]
                   (alias: pprreevv)
             Move to the previous window in the session.

     rreeffrreesshh--cclliieenntt [--tt _t_a_r_g_e_t_-_c_l_i_e_n_t]
                   (alias: rreeffrreesshh)
             Refresh the current client if bound to a key, or a single client
             if one is given with --tt.

     rreennaammee--sseessssiioonn [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n] _n_e_w_-_n_a_m_e
                   (alias: rreennaammee)
             Rename the session to _n_e_w_-_n_a_m_e.

     rreennaammee--wwiinnddooww [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w] _n_e_w_-_n_a_m_e
                   (alias: rreennaammeeww)
             Rename the current window, or the window at _t_a_r_g_e_t_-_w_i_n_d_o_w if
             specified, to _n_e_w_-_n_a_m_e.

     rreessiizzee--ppaannee [--DDUU] [--pp _p_a_n_e_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w] [_a_d_j_u_s_t_m_e_n_t]
                   (alias: rreessiizzeepp)
             Resize a pane, upward with --UU (the default) or downward with --DD.
             The _a_d_j_u_s_t_m_e_n_t is given in lines (the default is 1).

     rreessppaawwnn--wwiinnddooww [--kk] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w] [_c_o_m_m_a_n_d]
                   (alias: rreessppaawwnnww)
             Reactive a window in which the command has exited (see the
             rreemmaaiinn--oonn--eexxiitt window option).  If _c_o_m_m_a_n_d is not given, the com-
             mand used when the window was created is executed.  The window
             must be already inactive, unless --kk is given, in which case any
             existing command is killed.

     rroottaattee--wwiinnddooww [--DDUU] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
                   (alias: rroottaatteeww)
             Rotate the positions of the panes within a window, either upward
             (numerically lower) with --UU or downward (numerically higher).

     ssaavvee--bbuuffffeerr [--aa] [--bb _b_u_f_f_e_r_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n] _p_a_t_h
                   (alias: ssaavveebb)
             Save the contents of the specified paste buffer to _p_a_t_h.  The --aa
             option appends to rather than overwriting the file.

     ssccrroollll--mmooddee [--uu] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
             Enter scroll mode.  The --uu has the same meaning as in the ccooppyy--
             mmooddee command.

     sseelleecctt--ppaannee [--pp _p_a_n_e_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
                   (alias: sseelleeccttpp)
             Make pane _p_a_n_e_-_i_n_d_e_x the active pane in window _t_a_r_g_e_t_-_w_i_n_d_o_w.

     sseelleecctt--pprroommpptt [--tt _t_a_r_g_e_t_-_c_l_i_e_n_t]
             Open a prompt inside _t_a_r_g_e_t_-_c_l_i_e_n_t allowing a window index to be
             entered interactively.

     sseelleecctt--wwiinnddooww [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
                   (alias: sseelleeccttww)
             Select the window at _t_a_r_g_e_t_-_w_i_n_d_o_w.

     sseenndd--kkeeyyss [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w] _k_e_y _._._.
                   (alias: sseenndd)
             Send a key or keys to a window.  Each argument _k_e_y 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.

     sseenndd--pprreeffiixx [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
             Send the prefix key to a window as if it was pressed.

     sseerrvveerr--iinnffoo
                   (alias: iinnffoo)
             Show server information and terminal details.

     sseett--bbuuffffeerr [--bb _b_u_f_f_e_r_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n] _d_a_t_a
                   (alias: sseettbb)
             Set the contents of the specified buffer to _d_a_t_a.

     sseett--ooppttiioonn [--gguu] [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n] _o_p_t_i_o_n _v_a_l_u_e
                   (alias: sseett)
             Set an option.  If --gg is specified, the option is set as a global
             option.  Global options apply to all sessions which don't have
             the option explicitly set.  If --gg is not used, the option applies
             only to _t_a_r_g_e_t_-_s_e_s_s_i_o_n.  The --uu flag unsets an option, so a ses-
             sion inherits the option from the global options - it is not pos-
             sible to unset a global option.

             Possible options are:

             bbeellll--aaccttiioonn [aannyy | nnoonnee | ccuurrrreenntt]
                     Set action on window bell.  aannyy means a bell in any win-
                     dow linked to a session causes a bell in the current win-
                     dow of that session, nnoonnee means all bells are ignored and
                     ccuurrrreenntt means only bell in windows other than the current
                     window are ignored.

             bbuuffffeerr--lliimmiitt _n_u_m_b_e_r
                     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.

             ddeeffaauulltt--ccoommmmaanndd _c_o_m_m_a_n_d
                     Set the command used for new windows (if not specified
                     when the window is created) to _c_o_m_m_a_n_d.  The default is
                     ``exec $SHELL''.

             ddeeffaauulltt--ppaatthh _p_a_t_h
                     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.

             hhiissttoorryy--lliimmiitt _l_i_n_e_s
                     Set the maximum number of lines held in window history.
                     This setting applies only to new windows - existing win-
                     dow histories are not resized and retain the limit at the
                     point they were created.

             lloocckk--aafftteerr--ttiimmee _n_u_m_b_e_r
                     Lock the server after _n_u_m_b_e_r seconds of inactivity.  The
                     default is off (set to 0).  This has no effect as a ses-
                     sion option; it must be set as a global option using --gg.

             mmeessssaaggee--aattttrr _a_t_t_r_i_b_u_t_e_s
                     Set status line message attributes, where _a_t_t_r_i_b_u_t_e_s is
                     either ddeeffaauulltt or a comma-delimited list of one or more
                     of: bbrriigghhtt (or bboolldd), ddiimm, uunnddeerrssccoorree, bblliinnkk, rreevveerrssee,
                     hhiiddddeenn, or iittaalliiccss.

             mmeessssaaggee--bbgg _c_o_l_o_u_r
                     Set status line message background colour, where _c_o_l_o_u_r
                     is one of: bbllaacckk, rreedd, ggrreeeenn, yyeellllooww, bblluuee, mmaaggeennttaa,
                     ccyyaann, wwhhiittee or ddeeffaauulltt.

             mmeessssaaggee--ffgg _c_o_l_o_u_r
                     Set status line message foreground colour.

             pprreeffiixx _k_e_y
                     Set the current prefix key.

             rreeppeeaatt--ttiimmee _n_u_m_b_e_r
                     Allow multiple commands to be entered without pressing
                     the prefix-key again in the specified _n_u_m_b_e_r milliseconds
                     (the default is 500).  Whether a key repeats may be set
                     when it is bound using the --rr flag to bbiinndd--kkeeyy.  Repeat
                     is enabled for the default keys of the uupp--ppaannee, ddoowwnn--
                     ppaannee, rreessiizzee--ppaannee--uupp, and rreessiizzee--ppaannee--ddoowwnn commands.

             sseett--rreemmaaiinn--oonn--eexxiitt [oonn | ooffff]
                     Set the rreemmaaiinn--oonn--eexxiitt window option for any windows
                     first created in this session.

             sseett--ttiittlleess [oonn | ooffff]
                     Attempt to set the window title using the \e]2;...\007
                     xterm code and the terminal appears to be an xterm.  This
                     option is enabled by default.  Note that elinks(1) will
                     only attempt to set the window title if the STY environ-
                     ment variable is set.

             ssttaattuuss [oonn | ooffff]
                     Show or hide the status line.

             ssttaattuuss--aattttrr _a_t_t_r_i_b_u_t_e_s
                     Set status line attributes.

             ssttaattuuss--bbgg _c_o_l_o_u_r
                     Set status line background colour.

             ssttaattuuss--ffgg _c_o_l_o_u_r
                     Set status line foreground colour.

             ssttaattuuss--iinntteerrvvaall _i_n_t_e_r_v_a_l
                     Update the status bar every _i_n_t_e_r_v_a_l seconds.  By de-
                     fault, updates will occur every 15 seconds.  A setting of
                     zero disables redrawing at interval.

             ssttaattuuss--kkeeyyss [vvii | eemmaaccss]
                     Use vi(1)- or emacs(1)-style key bindings in the status
                     line, for example at the command prompt.  Defaults to
                     emacs.

             ssttaattuuss--lleefftt _s_t_r_i_n_g
                     Display _s_t_r_i_n_g to the left of the status bar.  _s_t_r_i_n_g
                     will be passed through strftime(3) before being used.  By
                     default, the session name is shown.  _s_t_r_i_n_g may contain
                     any of the following special character pairs:

                           CChhaarraacctteerr ppaaiirr    RReeppllaacceedd wwiitthh
                           #(command)        First line of command's output
                           #H                Hostname of local host
                           #S                Session name
                           #T                Current window title
                           ##                A literal `#'

                     Where appropriate, these may be prefixed with a number to
                     specify the maximum length, for example `#24T'.

             ssttaattuuss--lleefftt--lleennggtthh _l_e_n_g_t_h
                     Set the maximum _l_e_n_g_t_h of the left component of the sta-
                     tus bar.  The default is 10.

             ssttaattuuss--rriigghhtt _s_t_r_i_n_g
                     Display _s_t_r_i_n_g to the right of the status bar.  By de-
                     fault, the date and time will be shown.  As with ssttaattuuss--
                     lleefftt, _s_t_r_i_n_g will be passed to strftime(3) and character
                     pairs are replaced.

             ssttaattuuss--rriigghhtt--lleennggtthh _l_e_n_g_t_h
                     Set the maximum _l_e_n_g_t_h of the right component of the sta-
                     tus bar.  The default is 40.

     sseett--ppaasssswwoorrdd [--cc] _p_a_s_s_w_o_r_d
                   (alias: ppaassss)
             Set the server password.  If the --cc option is given, a pre-en-
             crypted password may be specified.  By default, the password is
             blank, thus any entered password will be accepted when unlocking
             the server (see the lloocckk--sseerrvveerr command).  To prevent variable
             expansion when an encrypted password is read from a configuration
             file, enclose it in single quotes (').

     sseett--wwiinnddooww--ooppttiioonn [--gguu] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w] _o_p_t_i_o_n _v_a_l_u_e
                   (alias: sseettww)
             Set a window-specific option.  The --gg and --uu flags work similarly
             to the sseett--ooppttiioonn command.

             Supported options are:

             aaggggrreessssiivvee--rreessiizzee [oonn | ooffff]
                     Aggressively resize the chosen window.  This means that
                     ttmmuuxx 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.

             aauuttoommaattiicc--rreennaammee [oonn | ooffff]
                     Control automatic window renaming.  When this setting is
                     enabled, ttmmuuxx will attempt - on supported platforms - to
                     rename the window to reflect the command currently run-
                     ning in it.  This flag is automatically disabled for an
                     individual window when a name is specified at creation
                     with nneeww--wwiinnddooww oorr nneeww--sseessssiioonn, or later with rreennaammee--
                     wwiinnddooww.  It may be switched off globally with:

                           set-window-option -g automatic-rename off

             cclloocckk--mmooddee--ccoolloouurr _c_o_l_o_u_r
                     Set clock colour.

             cclloocckk--mmooddee--ssttyyllee [1122 | 2244]
                     Set clock hour format.

             ffoorrccee--hheeiigghhtt _h_e_i_g_h_t

             ffoorrccee--wwiiddtthh _w_i_d_t_h
                     Prevent ttmmuuxx from resizing a window to greater than _w_i_d_t_h
                     or _h_e_i_g_h_t.  A value of zero restores the default unlimit-
                     ed setting.

             mmooddee--aattttrr _a_t_t_r_i_b_u_t_e_s
                     Set window modes attributes.

             mmooddee--bbgg _c_o_l_o_u_r
                     Set window modes background colour.

             mmooddee--ffgg _c_o_l_o_u_r
                     Set window modes foreground colour.

             mmooddee--kkeeyyss [vvii | eemmaaccss]
                     Use vi(1)- or emacs(1)-style key bindings in scroll and
                     copy modes.  Key bindings default to emacs.

             mmoonniittoorr--aaccttiivviittyy [oonn | ooffff]
                     Monitor for activity in the window.  Windows with activi-
                     ty are highlighted in the status line.

             mmoonniittoorr--ccoonntteenntt _m_a_t_c_h_-_s_t_r_i_n_g
                     Monitor content in the window. When _m_a_t_c_h_-_s_t_r_i_n_g appears
                     in the window, it is highlighted in the status line.

             rreemmaaiinn--oonn--eexxiitt [oonn | ooffff]
                     A window with this flag set is not destroyed when the
                     program running in it exits.  The window may be reacti-
                     vated with the rreessppaawwnn--wwiinnddooww command.

             uuttff88 [oonn | ooffff]
                     Instructs ttmmuuxx to expect UTF-8 sequences to appear in
                     this window.

             wwiinnddooww--ssttaattuuss--aattttrr _a_t_t_r_i_b_u_t_e_s
                     Set status line attributes for a single window.

             wwiinnddooww--ssttaattuuss--bbgg _c_o_l_o_u_r
                     Set status line background colour for a single window.

             wwiinnddooww--ssttaattuuss--ffgg _c_o_l_o_u_r
                     Set status line foreground colour for a single window.

             xxtteerrmm--kkeeyyss [oonn | ooffff]
                     If this option is set, ttmmuuxx will generate xterm(1)-style
                     function key sequences; these have a number included to
                     indicate modifiers such as shift, meta or ctrl.

     sshhooww--bbuuffffeerr [--bb _b_u_f_f_e_r_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n]
                   (alias: sshhoowwbb)
             Display the contents of the specified buffer.

     sshhooww--ooppttiioonnss [--tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n] _o_p_t_i_o_n _v_a_l_u_e
                   (alias: sshhooww)
             Show the currently set options.  If a _t_a_r_g_e_t_-_s_e_s_s_i_o_n is speci-
             fied, the options for that session are shown; otherwise, the
             global options are listed.

     sshhooww--wwiinnddooww--ooppttiioonnss [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w] _o_p_t_i_o_n _v_a_l_u_e
                   (alias: sshhoowwww)
             List the current options for the given window.

     ssoouurrccee--ffiillee _p_a_t_h
                   (alias: ssoouurrccee)
             Execute commands from _p_a_t_h.

     sspplliitt--wwiinnddooww [--dd] [--ll _l_i_n_e_s | --pp _p_e_r_c_e_n_t_a_g_e] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w] [_c_o_m_m_a_n_d]
                   (alias: splitw)
             Creates a new window by splitting it vertically.  The --ll and --pp
             options specify the size of the new window in lines, or as a per-
             centage, respectively.  All other options have the same meaning
             as in the nneeww--wwiinnddooww command.

             A few notes with regard to panes:
             1.   If attempting to split a window with less than eight lines,
                  an error will be shown.
             2.   If the window is resized, as many panes are shown as can fit
                  without reducing them below four lines.
             3.   The minimum pane size is four lines (including the separator
                  line).
             4.   The panes are indexed from top (0) to bottom, with no num-
                  bers skipped.

     ssttaarrtt--sseerrvveerr
                   (alias: ssttaarrtt)
             Start the ttmmuuxx server, if not already running, without creating
             any sessions.

     ssuussppeenndd--cclliieenntt [--cc --ttaarrggeett--cclliieenntt]
                   (alias: ssuussppeennddcc)
             Suspend a client by sending SIGTSTP (tty stop).

     sswwaapp--ppaannee [--ddDDUU] [--pp _s_r_c_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w] [--qq _d_s_t_-_i_n_d_e_x]
                   (alias: sswwaapppp)
             Swap two panes within a window.  If --UU is used, the pane is
             swapped with the pane above (before it numerically); --DD swaps
             with the pane below (the next numerically); or _d_s_t_-_i_n_d_e_x may be
             give to swap with a specific pane.

     sswwaapp--wwiinnddooww [--dd] [--ss _s_r_c_-_w_i_n_d_o_w] [--tt _d_s_t_-_w_i_n_d_o_w]
                   (alias: sswwaappww)
             This is similar to lliinnkk--wwiinnddooww, except the source and destination
             windows are swapped.  It is an error if no window exists at _s_r_c_-
             _w_i_n_d_o_w.

     sswwiittcchh--cclliieenntt [--cc _t_a_r_g_e_t_-_c_l_i_e_n_t --tt _t_a_r_g_e_t_-_s_e_s_s_i_o_n]
                   (alias: sswwiittcchhcc)
             Switch the current session for client _t_a_r_g_e_t_-_c_l_i_e_n_t to _t_a_r_g_e_t_-
             _s_e_s_s_i_o_n.

     uunnbbiinndd--kkeeyy _k_e_y
                   (alias: uunnbbiinndd)
             Unbind the key bound to _k_e_y.

     uunnlliinnkk--wwiinnddooww [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
                   (alias: uunnlliinnkkww)
             Unlink _t_a_r_g_e_t_-_w_i_n_d_o_w.  A window may be unlinked only if it is
             linked to multiple sessions - windows may not be linked to no
             sessions.

     uupp--ppaannee [--pp _p_a_n_e_-_i_n_d_e_x] [--tt _t_a_r_g_e_t_-_w_i_n_d_o_w]
                   (alias: uupppp)
             Move up a pane.

FFIILLEESS
     ~/.tmux.conf
             default ttmmuuxx configuration file

SSEEEE AALLSSOO
     pty(4)

AAUUTTHHOORRSS
     Nicholas Marriott <nicm@users.sourceforge.net>

OpenBSD 4.5                     April 20, 2009                              13