| TMUX(1) | General Commands Manual | TMUX(1) |
tmux —
tmux |
[-2Cluv]
[-c shell-command]
[-f file]
[-L socket-name]
[-S socket-path]
[command [flags]] |
tmux is a terminal multiplexer: it enables a number of
terminals to be created, accessed, and controlled from a single screen.
tmux may be detached from a screen and continue
running in the background, then later reattached.
When tmux is started it creates a new
session with a single window and
displays it on screen. A status line at the bottom of the screen shows
information on the current session and is used to enter interactive
commands.
A session is a single collection of pseudo
terminals under the management of tmux. Each
session has one or more windows linked to it. A window occupies the entire
screen and may be split into rectangular panes, each of which is a separate
pseudo terminal (the pty(4) manual page documents the
technical details of pseudo terminals). Any number of
tmux instances may connect to the same session, and
any number of windows may be present in the same session. Once all sessions
are killed, tmux exits.
Each session is persistent and will survive accidental
disconnection (such as ssh(1) connection timeout) or
intentional detaching (with the ‘C-b
d’ key strokes). tmux may be
reattached using:
$ tmux attachIn tmux, a session is displayed on screen
by a client and all sessions are managed by a single
server. The server and each client are separate processes
which communicate through a socket in /tmp.
The options are as follows:
-2tmux to assume the terminal supports 256
colours.-C-CC) disables
echo.-c
shell-commandtmux server will be started to
retrieve the default-shell option. This option is
for compatibility with sh(1) when
tmux is used as a login shell.-f
filetmux 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. tmux loads
configuration files once when the server process has started. The
source-file command may be used to load a file
later.
tmux shows any error messages from
commands in configuration files in the first session created, and
continues to process the rest of the configuration file.
-L
socket-nametmux stores the server socket in a directory under
TMUX_TMPDIR or /tmp if it
is unset. 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 (note that
this will fail if any parent directories are missing).
-l-S
socket-path-S is specified, the default socket directory is
not used and any -L flag is ignored.-utmux 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.
Note that tmux itself always accepts
UTF-8; this controls whether it will send UTF-8 characters to the
terminal it is running (if not, they are replaced by
‘_’).
-vtmux, as described in the following sections. If
no commands are specified, the new-session command
is assumed.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.
The default command key bindings are:
tmux client.tmux command prompt.select-pane
-m).tmux, if any.Key bindings may be changed with the
bind-key and unbind-key
commands.
tmux. Most commands accept the optional
-t (and sometimes -s) 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 should be 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,
tmux attempts to work out the client currently in
use; if that fails, an error is reported. Clients may be listed with the
list-clients command.
target-session is tried as, in order:
list-sessions command).mysess’ would match a session named
‘mysession’.If the session name is prefixed with an
‘=’, only an exact match is accepted
(so ‘=mysess’ will only match exactly
‘mysess’, not
‘mysession’).
If a single session 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 used is chosen.
target-window (or src-window or dst-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:
mysession:1’ is window 1 in session
‘mysession’.mysession:mywindow’.mysession:mywin’.Like sessions, a ‘=’ prefix
will do an exact match only. 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.
The following special tokens are available to indicate particular windows. Each has a single-character alternative form.
| Token | Meaning | |
{start} |
^ | The lowest-numbered window |
{end} |
$ | The highest-numbered window |
{last} |
! | The last (previously current) window |
{next} |
+ | The next window by number |
{previous} |
- | The previous window by number |
target-pane (or
src-pane or dst-pane) may be a
pane ID or takes a similar form to target-window but
with the optional addition of a period followed by a pane index or pane ID,
for example: ‘mysession:mywindow.1’.
If the pane index is omitted, the currently active pane in the specified
window is used. The following special tokens are available for the pane
index:
| Token | Meaning | |
{last} |
! | The last (previously active) pane |
{next} |
+ | The next pane by number |
{previous} |
- | The previous pane by number |
{top} |
The top pane | |
{bottom} |
The bottom pane | |
{left} |
The leftmost pane | |
{right} |
The rightmost pane | |
{top-left} |
The top-left pane | |
{top-right} |
The top-right pane | |
{bottom-left} |
The bottom-left pane | |
{bottom-right} |
The bottom-right pane | |
{up-of} |
The pane above the active pane | |
{down-of} |
The pane below the active pane | |
{left-of} |
The pane to the left of the active pane | |
{right-of} |
The pane to the right of the active pane |
The tokens ‘+’ and
‘-’ may be followed by an offset, for
example:
select-window -t:+2
In addition, target-session,
target-window or target-pane may consist
entirely of the token ‘{mouse}’
(alternative form ‘=’) to specify the
most recent mouse event (see the MOUSE
SUPPORT section) or ‘{marked}’
(alternative form ‘~’) to specify the
marked pane (see select-pane
-m).
Sessions, window and panes are each numbered with a unique ID;
session IDs are prefixed with a ‘$’,
windows with a ‘@’, and panes with a
‘%’. These are unique and are
unchanged for the life of the session, window or pane in the
tmux server. The pane ID is passed to the child
process of the pane in the TMUX_PANE environment
variable. IDs may be displayed using the
‘session_id’,
‘window_id’, or
‘pane_id’ formats (see the
FORMATS section) and the
display-message,
list-sessions, list-windows
or list-panes commands.
shell-command arguments are sh(1) commands. This may be a single argument passed to the shell, for example:
new-window 'vi /etc/passwd'
Will run:
/bin/sh -c 'vi /etc/passwd'
Additionally, the new-window,
new-session, split-window,
respawn-window and
respawn-pane commands allow
shell-command to be given as multiple arguments and
executed directly (without ‘sh -c’).
This can avoid issues with shell quoting. For example:
$ tmux new-window vi /etc/passwd
Will run vi(1) directly without invoking the shell.
command [arguments]
refers to a tmux command, passed with the command
and arguments separately, for example:
bind-key F1 set-window-option force-width 81
Or if using sh(1):
$ tmux bind-key F1 set-window-option force-width 81
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 and lines ending with a backslash continue on to the next line, except
when escaped by another backslash. A literal semicolon may be included by
escaping it with a backslash (for example, when specifying a command
sequence to bind-key).
Example tmux commands 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 R source-file ~/.tmux.conf \; \ display-message "source-file done"
Or from sh(1):
$ tmux kill-window -t :1 $ tmux new-window \; split-window -d $ tmux new-session -d 'vi /etc/passwd' \; split-window -d \; attach
tmux server manages clients, sessions, windows and
panes. Clients are attached to sessions to interact with them, either when
they are created with the new-session command, or
later with the attach-session command. Each session
has one or more windows linked into it. Windows may be
linked to multiple sessions and are made up of one or more panes, each of
which contains a pseudo terminal. Commands for creating, linking and otherwise
manipulating windows are covered in the
WINDOWS AND PANES section.
The following commands are available to manage clients and sessions:
attach-session
[-dEr] [-c
working-directory] [-t
target-session]attach)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.
-r signifies the client is read-only (only keys
bound to the detach-client or
switch-client commands have any effect)
If no server is started,
attach-session will attempt to start it; this
will fail unless sessions are created in the configuration file.
The target-session rules for
attach-session are slightly adjusted: if
tmux needs to select the most recently used
session, it will prefer the most recently used
unattached session.
-c will set the session working
directory (used for new windows) to
working-directory.
If -E is used, the
update-environment option will not be
applied.
detach-client
[-aP] [-s
target-session] [-t
target-client]detach)-t, or all clients currently attached to the
session specified by -s. The
-a option kills all but the client given with
-t. If -P is given, send
SIGHUP to the parent process of the client, typically causing it to
exit.has-session
[-t target-session]has)kill-servertmux server and clients and destroy all
sessions.kill-session
[-aC] [-t
target-session]-a is given, all sessions but the specified one is
killed. The -C flag clears alerts (bell, activity,
or silence) in all windows linked to the session.list-clients
[-F format]
[-t target-session]lsc)-F flag, see the
FORMATS section. If
target-session is specified, list only clients
connected to that session.list-commandslscm)tmux.list-sessions
[-F format]ls)-F flag, see the
FORMATS section.lock-client
[-t target-client]lockc)lock-server command.lock-session
[-t target-session]locks)new-session
[-AdDEP] [-c
start-directory] [-F
format] [-n
window-name] [-s
session-name] [-t
target-session] [-x
width] [-y
height] [shell-command]new)The new session is attached to the current terminal unless
-d is given. window-name
and shell-command are the name of and shell
command to execute in the initial window. If -d
is used, -x and -y
specify the size of the initial window (80 by 24 if not given).
If run from a terminal, any termios(4) special characters are saved and used for new windows in the new session.
The -A flag makes
new-session behave like
attach-session if
session-name already exists; in this case,
-D behaves like -d to
attach-session.
If -t is given, the new session is
grouped with target-session.
This means they share the same set of windows - all windows from
target-session are linked to the new session, any
new windows are linked to both sessions and any windows closed removed
from both sessions. The current and previous window and any session
options remain independent and either session may be killed without
affecting the other. -n and
shell-command are invalid if
-t is used.
The -P option prints information about
the new session after it has been created. By default, it uses the
format ‘#{session_name}:’ but a
different format may be specified with -F.
If -E is used, the
update-environment option will not be
applied.
refresh-client
[-S] [-t
target-client]refresh)-t. If -S is
specified, only update the client's status bar.rename-session
[-t target-session]
new-namerename)show-messages
[-JT] [-t
target-client]showmsgs)-t, display the log for
target-client. -J and
-T show debugging information about jobs and
terminals.source-file
pathsource)start-serverstart)tmux server, if not already running,
without creating any sessions.suspend-client
[-t target-client]suspendc)SIGTSTP (tty stop).switch-client
[-Elnpr] [-c
target-client] [-t
target-session] [-T
key-table]switchc)-l,
-n or -p is used, the
client is moved to the last, next or previous session respectively.
-r toggles whether a client is read-only (see the
attach-session command).
If -E is used,
update-environment option will not be
applied.
-T sets the client's key table; the
next key from the client will be interpreted from
key-table. This may be used to configure multiple
prefix keys, or to bind commands to sequences of keys. For example, to
make typing ‘abc’ run the
list-keys command:
bind-key -Ttable2 c list-keys
bind-key -Ttable1 b switch-client -Ttable2
bind-key -Troot a switch-client -Ttable1
tmux window may be in one of several modes. The
default permits direct access to the terminal attached to the window. The
other is copy mode, which 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. It is
also entered when a command that produces output, such as
list-keys, is executed from a key binding.
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:
The next and previous word keys use space and the
‘-’,
‘_’ and
‘@’ characters as word delimiters by
default, but this can be adjusted by setting the
word-separators session option. Next word moves to the
start of the next word, next word end to the end of the next word and
previous word to the start of the previous word. The three next and previous
space keys work similarly but use a space alone as the word separator.
The jump commands enable quick movement within a line. For
instance, typing ‘f’ followed by
‘/’ will move the cursor to the next
‘/’ character on the current line. A
‘;’ will then jump to the next
occurrence.
Commands in copy mode may be prefaced by an optional repeat count.
With vi key bindings, a prefix is entered using the number keys; with emacs,
the Alt (meta) key and a number begins prefix entry. For example, to move
the cursor forward by ten words, use ‘M-1 0
M-f’ in emacs mode, and
‘10w’ in vi.
Mode 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 choose-window command); and
vi-copy and emacs-copy used in copy
mode. The tables may be viewed with the list-keys
command and keys modified or removed with bind-key
and unbind-key. If
append-selection,
copy-selection, or
start-named-buffer are given the
-x flag, tmux will not exit
copy mode after copying. copy-pipe copies the
selection and pipes it to a command. For example the following will bind
‘C-w’ not to exit after copying and
‘C-q’ to copy the selection into
/tmp as well as the paste buffer:
bind-key -temacs-copy C-w copy-selection -x bind-key -temacs-copy C-q copy-pipe "cat >/tmp/out"
The paste buffer key pastes the first line from the top paste buffer on the stack.
The synopsis for the copy-mode command
is:
copy-mode
[-Meu] [-t
target-pane]-u option scrolls one page
up. -M begins a mouse drag (only valid if bound to
a mouse key binding, see MOUSE
SUPPORT). -e specifies that scrolling to the
bottom of the history (to the visible screen) should exit copy mode. While
in copy mode, pressing a key other than those used for scrolling will
disable this behaviour. This is intended to allow fast scrolling through a
pane's history, for example with:
bind PageUp copy-mode -eu
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 select-pane command 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
‘Space’ by default); once a layout is
chosen, panes within it may be moved and resized as normal.
The following layouts are supported:
even-horizontaleven-verticalmain-horizontalmain-verticalmain-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.tiledIn addition, select-layout may be used to
apply a previously used layout - the list-windows
command displays the layout of each window in a form suitable for use with
select-layout. For example:
$ tmux list-windows
0: ksh [159x48]
layout: bb62,159x48,0,0{79x48,0,0,79x48,80,0}
$ tmux select-layout bb62,159x48,0,0{79x48,0,0,79x48,80,0}
tmux automatically adjusts the size of the
layout for the current window size. Note that a layout cannot be applied to
a window with more panes than that from which the layout was originally
defined.
Commands related to windows and panes are as follows:
break-pane
[-dP] [-F
format] [-s
src-pane] [-t
dst-window]breakp)-d is given, the new window does not become the
current window. The -P option prints information
about the new window after it has been created. By default, it uses the
format
‘#{session_name}:#{window_index}’
but a different format may be specified with
-F.capture-pane
[-aepPq] [-b
buffer-name] [-E
end-line] [-S
start-line] [-t
target-pane]capturep)-p is given, the
output goes to stdout, otherwise to the buffer specified with
-b or a new buffer if omitted. If
-a is given, the alternate screen is used, and the
history is not accessible. If no alternate screen exists, an error will be
returned unless -q is given. If
-e is given, the output includes escape sequences
for text and background attributes. -C also
escapes non-printable characters as octal \xxx. -J
joins wrapped lines and preserves trailing spaces at each line's end.
-P captures only any output that the pane has
received that is the beginning of an as-yet incomplete escape sequence.
-S and -E
specify the starting and ending line numbers, zero is the first line of
the visible pane and negative numbers are lines in the history.
‘-’ to -S
is the start of the history and to -E the end of
the visible pane. The default is to capture only the visible contents of
the pane.
choose-client
[-F format]
[-t target-window]
[template]%%’ is replaced by the client
pty(4) path in template and the
result executed as a command. If template is not
given, "detach-client -t '%%'" is used. For the meaning of the
-F flag, see the
FORMATS section. This command works only
if at least one client is attached.choose-session
[-F format]
[-t target-window]
[template]%%’ is replaced by the session name
in template and the result executed as a command. If
template is not given, "switch-client -t
'%%'" is used. For the meaning of the -F
flag, see the FORMATS section. This
command works only if at least one client is attached.choose-tree
[-suw] [-b
session-template] [-c
window-template] [-S
format] [-W
format] [-t
target-window]Note that the choose-window and
choose-session commands are wrappers around
choose-tree.
If -s is given, will show sessions. If
-w is given, will show windows.
By default, the tree is collapsed and sessions must be
expanded to windows with the right arrow key. The
-u option will start with all sessions expanded
instead.
If -b is given, will override the
default session command. Note that
‘%%’ can be used and will be
replaced with the session name. The default option if not specified is
"switch-client -t '%%'". If -c is
given, will override the default window command. Like
-b, ‘%%’
can be used and will be replaced with the session name and window index.
When a window is chosen from the list, the session command is run before
the window command.
If -S is given will display the
specified format instead of the default session format. If
-W is given will display the specified format
instead of the default window format. For the meaning of the
-s and -w options, see
the FORMATS section.
This command works only if at least one client is attached.
choose-window
[-F format]
[-t target-window]
[template]%%’ is replaced by the session name
and window index in template and the result executed
as a command. If template is not given,
"select-window -t '%%'" is used. For the meaning of the
-F flag, see the
FORMATS section. This command works only
if at least one client is attached.display-panes
[-t target-client]displayp)display-panes-time,
display-panes-colour, and
display-panes-active-colour session options. While
the indicator is on screen, a pane may be selected with the
‘0’ to
‘9’ keys.find-window
[-CNT] [-F
format] [-t
target-window] match-stringfindw)-C matches only visible window contents,
-N matches only the window name and
-T matches only the window title. The default is
-CNT. If only one window is matched, it'll be
automatically selected, otherwise a choice list is shown. For the meaning
of the -F flag, see the
FORMATS section. This command works only
if at least one client is attached.join-pane
[-bdhv] [-l
size | -p
percentage] [-s
src-pane] [-t
dst-pane]joinp)split-window, but instead of splitting
dst-pane and creating a new pane, split it and move
src-pane into the space. This can be used to reverse
break-pane. The -b option
causes src-pane to be joined to left of or above
dst-pane.
If -s is omitted and a marked pane is
present (see select-pane
-m), the marked pane is used rather than the
current pane.
kill-pane
[-a] [-t
target-pane]killp)-a option kills all but the
pane given with -t.kill-window
[-a] [-t
target-window]killw)-a option kills all but
the window given with -t.last-pane
[-de] [-t
target-window]lastp)-e
enables or -d disables input to the pane.last-window
[-t target-session]last)link-window
[-adk] [-s
src-window] [-t
dst-window]linkw)-a, the window is moved to
the next index up (following windows are moved if necessary). 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-panes
[-as] [-F
format] [-t
target]lsp)-a is given, target is
ignored and all panes on the server are listed. If
-s is given, target is a
session (or the current session). If neither is given,
target is a window (or the current window). For the
meaning of the -F flag, see the
FORMATS section.list-windows
[-a] [-F
format] [-t
target-session]lsw)-a is given, list all windows on the server.
Otherwise, list windows in the current session or in
target-session. For the meaning of the
-F flag, see the
FORMATS section.move-pane
[-bdhv] [-l
size | -p
percentage] [-s
src-pane] [-t
dst-pane]movep)join-pane, but src-pane
and dst-pane may belong to the same window.move-window
[-ardk] [-s
src-window] [-t
dst-window]movew)link-window, except the window at
src-window is moved to
dst-window. With -r, all
windows in the session are renumbered in sequential order, respecting the
base-index option.new-window
[-adkP] [-c
start-directory] [-F
format] [-n
window-name] [-t
target-window]
[shell-command]neww)-a, the new window is
inserted at the next index up from the specified
target-window, moving windows up if necessary,
otherwise target-window is the new window location.
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.
shell-command is the command to execute. If
shell-command is not specified, the value of the
default-command option is used.
-c specifies the working directory in which the
new window is created.
When the shell command completes, the window closes. See the
remain-on-exit option to change this
behaviour.
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.
The -P option prints information about
the new window after it has been created. By default, it uses the format
‘#{session_name}:#{window_index}’
but a different format may be specified with
-F.
next-layout
[-t target-window]nextl)next-window
[-a] [-t
target-session]next)-a is
used, move to the next window with an alert.pipe-pane
[-o] [-t
target-pane]
[shell-command]pipep)status-left option. If no
shell-command is given, the current pipe (if any) is
closed.
The -o option only opens a new pipe if
no previous pipe exists, allowing a pipe to be toggled with a single
key, for example:
bind-key C-p pipe-pane -o 'cat >>~/output.#I-#P'
previous-layout
[-t target-window]prevl)previous-window
[-a] [-t
target-session]prev)-a,
move to the previous window with an alert.rename-window
[-t target-window]
new-namerenamew)resize-pane
[-DLMRUZ] [-t
target-pane] [-x
width] [-y
height] [adjustment]resizep)-U, -D,
-L or -R, or to an
absolute size with -x or
-y. The adjustment is given
in lines or cells (the default is 1).
With -Z, the active pane is toggled
between zoomed (occupying the whole of the window) and unzoomed (its
normal position in the layout).
-M begins mouse resizing (only valid
if bound to a mouse key binding, see
MOUSE SUPPORT).
respawn-pane
[-k] [-t
target-pane]
[shell-command]respawnp)remain-on-exit window option). If
shell-command is not given, the command used when
the pane was created is executed. The pane must be already inactive,
unless -k is given, in which case any existing
command is killed.respawn-window
[-k] [-t
target-window]
[shell-command]respawnw)remain-on-exit window option). If
shell-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]rotatew)-U or downward
(numerically higher).select-layout
[-nop] [-t
target-window]
[layout-name]selectl)-n and -p are equivalent
to the next-layout and
previous-layout commands.
-o applies the last set layout if possible (undoes
the most recent layout change).select-pane
[-DdegLlMmRU] [-P
style] [-t
target-pane]selectp)-P). If one of -D,
-L, -R, or
-U is used, respectively the pane below, to the
left, to the right, or above the target pane is used.
-l is the same as using the
last-pane command. -e
enables or -d disables input to the pane.
-m and -M are
used to set and clear the marked pane. There is one
marked pane at a time, setting a new marked pane clears the last. The
marked pane is the default target for -s to
join-pane, swap-pane and
swap-window.
Each pane has a style: by default the
window-style and
window-active-style options are used,
select-pane -P sets the
style for a single pane. For example, to set the pane 1 background to
red:
select-pane -t:.1 -P 'bg=red'
-g shows the current pane style.
select-window
[-lnpT] [-t
target-window]selectw)-l, -n and
-p are equivalent to the
last-window, next-window
and previous-window commands. If
-T is given and the selected window is already the
current window, the command behaves like
last-window.split-window
[-bdhvP] [-c
start-directory] [-l
size | -p
percentage] [-t
target-pane] [shell-command]
[-F format]splitw)-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 pane in
lines (for vertical split) or in cells (for horizontal split), or as a
percentage, respectively. The -b option causes the
new pane to be created to the left of or above
target-pane. All other options have the same meaning
as for the new-window command.swap-pane
[-dDU] [-s
src-pane] [-t
dst-pane]swapp)-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). -d instructs
tmux not to change the active pane.
If -s is omitted and a marked pane is
present (see select-pane
-m), the marked pane is used rather than the
current pane.
swap-window
[-d] [-s
src-window] [-t
dst-window]swapw)link-window, except the source
and destination windows are swapped. It is an error if no window exists at
src-window.
Like swap-pane, if
-s is omitted and a marked pane is present (see
select-pane -m), the
window containing the marked pane is used rather than the current
window.
unlink-window
[-k] [-t
target-window]unlinkw)-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.tmux allows a command to be bound to most keys, with or
without a prefix key. When specifying keys, most represent themselves (for
example ‘A’ to
‘Z’). Ctrl keys may be prefixed with
‘C-’ or
‘^’, and Alt (meta) with
‘M-’. In addition, the following special
key names are accepted: Up, Down,
Left, Right, BSpace,
BTab, DC (Delete), End,
Enter, Escape, F1 to
F12, Home, IC (Insert),
NPage/PageDown/PgDn, PPage/PageUp/PgUp,
Space, and Tab. Note that to bind the
‘"’ or
‘'’ keys, quotation marks are necessary,
for example:
bind-key '"' split-window bind-key "'" new-window
Commands related to key bindings are as follows:
bind-key
[-cnr] [-t
mode-table] [-T
key-table] key
command [arguments]bind)c’ is bound to
new-window in the prefix table,
so ‘C-b c’ creates a new window).
The root table is used for keys pressed without the
prefix key: binding ‘c’ to
new-window in the root table
(not recommended) means a plain ‘c’
will create a new window. -n is an alias for
-T root. Keys may also be
bound in custom key tables and the switch-client
-T command used to switch to them from a key
binding. The -r flag indicates this key may
repeat, see the repeat-time option.
If -t is present,
key is bound in mode-table:
the binding for command mode with -c or for
normal mode without. See the
WINDOWS AND PANES section
and the list-keys command for information on
mode key bindings.
To view the default bindings and possible commands, see the
list-keys command.
list-keys
[-t mode-table]
[-T key-table]lsk)-T all key tables are
printed. With -T only
key-table.
With -t, the key bindings in
mode-table are listed; this may be one of:
vi-edit, emacs-edit,
vi-choice, emacs-choice,
vi-copy or emacs-copy.
send-keys
[-lMR] [-t
target-pane] key
...send)C-a’
or ‘npage’ ) to send; if the string
is not recognised as a key, it is sent as a series of characters. The
-l flag disables key name lookup and sends the
keys literally. All arguments are sent sequentially from first to last.
The -R flag causes the terminal state to be reset.
-M passes through a mouse event (only
valid if bound to a mouse key binding, see
MOUSE SUPPORT).
send-prefix
[-2] [-t
target-pane]-2 the secondary
prefix key, to a window as if it was pressed.unbind-key
[-acn] [-t
mode-table] [-T
key-table] keyunbind)-c, -n,
-T and -t are the same as
for bind-key. If -a is
present, all key bindings are removed.tmux may be modified by
changing the value of various options. There are three types of option:
server options, session options and
window options.
The tmux server has a set of global
options which do not apply to any particular window or session. These are
altered with the set-option
-s command, or displayed with the
show-options -s command.
In addition, 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 server and
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.
tmux also supports user options which are
prefixed with a ‘@’. User options may
have any name, so long as they are prefixed with
‘@’, and be set to any string. For
example:
$ tmux setw -q @foo "abc123" $ tmux showw -v @foo abc123
Commands which set options are as follows:
set-option
[-agoqsuw] [-t
target-session | target-window]
option valueset)-w (equivalent to the
set-window-option command), a server option with
-s, otherwise a session option. If
-g is given, the global session or window option
is set. The -u flag unsets an option, so a session
inherits the option from the global options (or with
-g, restores a global option to the default).
The -o flag prevents setting an option
that is already set and the -q flag suppresses
errors about unknown or ambiguous options.
With -a, and if the option expects a
string or a style, value is appended to the
existing setting. For example:
set -g status-left "foo"
set -ag status-left "bar"
Will result in ‘foobar’.
And:
set -g status-style "bg=red"
set -ag status-style "fg=blue"
Will result in a red background and blue
foreground. Without -a, the result would be the
default background and a blue foreground.
Available window options are listed under
set-window-option.
value depends on the option and may be a number, a string, or a flag (on, off, or omitted to toggle).
Available server options are:
buffer-limit
numberdefault-terminal
terminalTERM environment
variable. For tmux to work correctly, this
must be set to
‘screen’,
‘tmux’ or a derivative of
them.escape-time
timetmux
waits after an escape is input to determine if it is part of a
function or meta key sequences. The default is 500 milliseconds.exit-unattached
[on | off]focus-events
[on | off]tmux. Attached clients should be detached and
attached again after changing this option.history-file
pathtmux will write
command prompt history on exit and load it from on start.message-limit
numberset-clipboard
[on | off]
disallowedWindowOps: 20,21,SetXprop
Or changing this property from the xterm(1) interactive menu when required.
terminal-overrides
stringFor example, to set the
‘clear’
terminfo(5) entry to
‘\e[H\e[2J’ for all terminal
types and the ‘dch1’ entry to
‘\e[P’ for the
‘rxvt’ terminal type, the
option could be set to the string:
"*:clear=\e[H\e[2J,rxvt:dch1=\e[P"
The terminal entry value is passed through
strunvis(3) before interpretation. The default
value forcibly corrects the
‘colors’ entry for terminals
which support 256 colours:
"*256col*:colors=256,xterm*:XT"
Available session options are:
assume-paste-time
millisecondstmux key bindings
are not processed. The default is one millisecond and zero
disables.base-index
indexbell-action
[any | none |
current | other]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, current means only bells in windows
other than the current window are ignored and
other means bells in the current window are
ignored but not those in other windows.bell-on-alert
[on | off]default-command
shell-commandtmux to create a login shell using
the value of the default-shell option.default-shell
pathdefault-command option is set
to empty, and must be the full path of the executable. When started
tmux tries to set a default value from the
first suitable of the SHELL environment
variable, the shell returned by getpwuid(3), or
/bin/sh. This option should be configured when
tmux is used as a login shell.destroy-unattached
[on | off]detach-on-destroy
[on | off]display-panes-active-colour
colourdisplay-panes
command to show the indicator for the active pane.display-panes-colour
colourdisplay-panes
command to show the indicators for inactive panes.display-panes-time
timedisplay-panes command appear.display-time
timehistory-limit
lineskey-table
key-tablelock-after-time
numberlock-session
command) after number seconds of inactivity. The
default is not to lock (set to 0).lock-command
shell-command-np.message-command-style
styleThese may be
‘bg=colour’ to set the
background colour, ‘fg=colour’
to set the foreground colour, and a list of attributes as specified
below.
The colour is one of: black,
red, green,
yellow, blue,
magenta, cyan,
white, aixterm bright variants (if
supported: brightred,
brightgreen, and so on),
colour0 to colour255
from the 256-colour set, default, or a
hexadecimal RGB string such as
‘#ffffff’, which chooses the
closest match from the default 256-colour set.
The attributes is either none or a
comma-delimited list of one or more of:
bright (or bold),
dim, underscore,
blink, reverse,
hidden, or italics,
to turn an attribute on, or an attribute prefixed with
‘no’ to turn one off.
Examples are:
fg=yellow,bold,underscore,blink
bg=black,fg=default,noreverse
With the -a flag to the
set-option command the new style is added
otherwise the existing style is replaced.
message-style
stylemessage-command-style option.mouse
[on | off]tmux captures the mouse and allows
mouse events to be bound as key bindings. See the
MOUSE SUPPORT section for
details.prefix
keyprefix can be set to the special key
‘None’ to set no prefix.prefix2
keyprefix, prefix2 can be
set to ‘None’.renumber-windows
[on | off]base-index option if it has been set. If off,
do not renumber the windows.repeat-time
time-r flag to
bind-key. Repeat is enabled for the default
keys bound to the resize-pane command.set-remain-on-exit
[on | off]remain-on-exit window option for any
windows first created in this session. When this option is true,
windows in which the running program has exited do not close, instead
remaining open but inactivate. Use the
respawn-window command to reactivate such a
window, or the kill-window command to destroy
it.set-titles
[on | off]tmux automatically sets these to the
\e]0;...\007 sequence if the terminal appears to be
xterm(1). This option is off by default.set-titles-string
stringset-titles is on. Formats are expanded, see
the FORMATS section.status
[on | off]status-interval
intervalstatus-justify
[left | centre |
right]status-keys
[vi | emacs]VISUAL or EDITOR
environment variables are set and contain the string
‘vi’.status-left
string| Character pair | Replaced with |
#[attributes] |
Colour or attribute change |
## |
A literal ‘#’ |
For details on how the names and titles can be set see the
NAMES AND TITLES section.
For a list of allowed attributes see the
message-command-style option.
Examples are:
#(sysctl vm.loadavg)
#[fg=yellow,bold]#(apm -l)%%#[default] [#S]
The default is ‘[#S]
’.
status-left-length
lengthstatus-left-style
stylemessage-command-style option.status-position
[top | bottom]status-right
stringstatus-left,
string will be passed to
strftime(3) and character pairs are replaced.status-right-length
lengthstatus-right-style
stylemessage-command-style option.status-style
stylemessage-command-style option.update-environment
variables-r was given to the
set-environment command). The default is
"DISPLAY SSH_ASKPASS SSH_AUTH_SOCK SSH_AGENT_PID SSH_CONNECTION
WINDOWID XAUTHORITY".visual-activity
[on | off]monitor-activity window option
is enabled.visual-bell
[on | off]bell-action option.visual-silence
[on | off]monitor-silence is enabled, prints a
message after the interval has expired on a given window.word-separators
string -_@’.set-window-option
[-agoqu] [-t
target-window] option
valuesetw)-a,
-g, -o,
-q and -u flags work
similarly to the set-option command.
Supported window options are:
aggressive-resize
[on | off]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.
allow-rename
[on | off]alternate-screen
[on | off]tmux may use the terminal alternate screen
feature, which allows the smcup and
rmcup terminfo(5) capabilities.
The alternate screen feature preserves the contents of the window when
an interactive application starts and restores it on exit, so that any
output visible before the application starts reappears unchanged after
it exits. The default is on.
automatic-rename
[on | off]tmux will rename the window automatically
using the format specified by
automatic-rename-format. 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, or with a terminal escape
sequence. It may be switched off globally with:
set-window-option -g automatic-rename off
automatic-rename-format
formatautomatic-rename option is enabled.
clock-mode-colour
colourclock-mode-style
[12 | 24]force-height
heightforce-width
widthtmux from resizing a window to greater
than width or height. A
value of zero restores the default unlimited setting.
main-pane-height
heightmain-pane-width
widthmain-horizontal or
main-vertical layouts.
mode-keys
[vi | emacs]status-keys option, the default is emacs,
unless VISUAL or
EDITOR contains
‘vi’.
mode-style
stylemessage-command-style option.
monitor-activity
[on | off]monitor-silence
[interval]interval seconds. Windows that have been
silent for the interval are highlighted in the status line. An
interval of zero disables the monitoring.
other-pane-height
heightmain-horizontal layout. If this option is set
to 0 (the default), it will have no effect. If both the
main-pane-height and
other-pane-height options are set, the main
pane will grow taller to make the other panes the specified height,
but will never shrink to do so.
other-pane-width
widthother-pane-height, but set the width of
other panes in the main-vertical layout.
pane-active-border-style
stylemessage-command-style option. Attributes are
ignored.
pane-base-index
indexbase-index, but set the starting index
for pane numbers.
pane-border-format
formatpane-border-status
[off | top |
bottom]pane-border-style
stylemessage-command-style option. Attributes are
ignored.
remain-on-exit
[on | off]respawn-window command.
synchronize-panes
[on | off]window-active-style
stylemessage-command-style option.
window-status-activity-style
stylemessage-command-style option.
window-status-bell-style
stylemessage-command-style option.
window-status-current-format
stringwindow-status-current-style
stylemessage-command-style option.
window-status-format
string#I:#W#F’.
window-status-last-style
stylemessage-command-style option.
window-status-separator
stringwindow-status-style
stylemessage-command-style option.
window-style
stylemessage-command-style option.
xterm-keys
[on | off]tmux will generate
xterm(1) -style function key sequences; these have a
number included to indicate modifiers such as Shift, Alt or Ctrl. The
default is off.
wrap-search
[on | off]show-options
[-gqsvw] [-t
target-session | target-window]
[option]show)-w (equivalent to
show-window-options), the server options with
-s, otherwise the session options for
target session. Global session or window options are
listed if -g is used. -v
shows only the option value, not the name. If -q
is set, no error will be returned if option is
unset.show-window-options
[-gv] [-t
target-window] [option]showw)-g is used. -v shows only
the option value, not the name.tmux allows commands to run on various triggers, called
hooks. Each tmux command has a
before hook and an after hook and there
are a number of hooks not associated with commands.
A command's before hook is run before the command is executed and
its after hook is run afterwards, except when the command is run as part of
a hook itself. Before hooks are named using the
‘before-’ prefix and after hooks the
‘after-’ prefix. For example, the
following command adds a hook to select the even-vertical layout after every
split-window:
set-hook after-split-window "selectl even-vertical"
Or to write when each new window is created to a file:
set-hook before-new-window 'run "date >>/tmp/log"'
In addition, the following hooks are available:
monitor-activity.monitor-silence.remain-on-exit is on so the pane has not
closed.Hooks are managed with these commands:
set-hook
[-g] [-t
target-session] hook-name
command-g is given,
hook-name is added to the global list of hooks,
otherwise it is added to the session hooks (for
target-session with -t).
Like options, session hooks inherit from the global ones.show-hooks
[-g] [-t
target-session]-g, otherwise
the session hooks.mouse option is on (the default is off),
tmux allows mouse events to be bound as keys. The name
of each key is made up of a mouse event (such as
‘MouseUp1’) and a location suffix (one
of ‘Pane’ for the contents of a pane,
‘Border’ for a pane border or
‘Status’ for the status line). The
following mouse events are available:
MouseDown1 |
MouseUp1 | MouseDrag1 | MouseDragEnd1 |
MouseDown2 |
MouseUp2 | MouseDrag2 | MouseDragEnd2 |
MouseDown3 |
MouseUp3 | MouseDrag3 | MouseDragEnd3 |
WheelUp |
WheelDown |
Each should be suffixed with a location, for example
‘MouseDown1Status’.
The special token ‘{mouse}’
or ‘=’ may be used as
target-window or target-pane in
commands bound to mouse key bindings. It resolves to the window or pane over
which the mouse event took place (for example, the window in the status line
over which button 1 was released for a
‘MouseUp1Status’ binding, or the pane
over which the wheel was scrolled for a
‘WheelDownPane’ binding).
The send-keys -M
flag may be used to forward a mouse event to a pane.
The default key bindings allow the mouse to be used to select and
resize panes, to copy text and to change window using the status line. These
take effect if the mouse option is turned on.
-F flag with a
format argument. This is a string which controls the
output format of the command. Replacement variables are enclosed in
‘#{’ and
‘}’, for example
‘#{session_name}’. The possible
variables are listed in the table below, or the name of a
tmux option may be used for an option's value. Some
variables have a shorter alias such as
‘#S’, and
‘##’ is replaced by a single
‘#’.
Conditionals are available by prefixing with
‘?’ and separating two alternatives
with a comma; if the specified variable exists and is not zero, the first
alternative is chosen, otherwise the second is used. For example
‘#{?session_attached,attached,not
attached}’ will include the string
‘attached’ if the session is attached
and the string ‘not attached’ if it is
unattached, or
‘#{?automatic-rename,yes,no}’ will
include ‘yes’ if
automatic-rename is enabled, or
‘no’ if not.
A limit may be placed on the length of the resultant string by
prefixing it by an ‘=’, a number and a
colon. Positive numbers count from the start of the string and negative from
the end, so ‘#{=5:pane_title}’ will
include at most the first 5 characters of the pane title, or
‘#{=-5:pane_title}’ the last 5
characters. Prefixing a time variable with
‘t:’ will convert it to a string, so
if ‘#{window_activity}’ gives
‘1445765102’,
‘#{t:window_activity}’ gives
‘Sun Oct 25 09:25:02 2015’. The
‘b:’ and
‘d:’ prefixes are
basename(3) and dirname(3) of the
variable respectively. A prefix of the form
‘s/foo/bar/:’ will substitute
‘foo’ with
‘bar’ throughout.
In addition, the first line of a shell command's output may be
inserted using ‘#()’. For example,
‘#(uptime)’ will insert the system's
uptime. When constructing formats, tmux does not
wait for ‘#()’ commands to finish;
instead, the previous result from running the same command is used, or a
placeholder if the command has not been run before. Commands are executed
with the tmux global environment set (see the
ENVIRONMENT section).
The following variables are available, where appropriate:
| Variable name | Alias | Replaced with |
alternate_on |
If pane is in alternate screen | |
alternate_saved_x |
Saved cursor X in alternate screen | |
alternate_saved_y |
Saved cursor Y in alternate screen | |
buffer_sample |
Sample of start of buffer | |
buffer_size |
Size of the specified buffer in bytes | |
client_activity |
Integer time client last had activity | |
client_created |
Integer time client created | |
client_control_mode |
1 if client is in control mode | |
client_height |
Height of client | |
client_key_table |
Current key table | |
client_last_session |
Name of the client's last session | |
client_pid |
PID of client process | |
client_prefix |
1 if prefix key has been pressed | |
client_readonly |
1 if client is readonly | |
client_session |
Name of the client's session | |
client_termname |
Terminal name of client | |
client_tty |
Pseudo terminal of client | |
client_utf8 |
1 if client supports utf8 | |
client_width |
Width of client | |
command_hooked |
Name of command hooked, if any | |
command_name |
Name of command in use, if any | |
cursor_flag |
Pane cursor flag | |
cursor_x |
Cursor X position in pane | |
cursor_y |
Cursor Y position in pane | |
history_bytes |
Number of bytes in window history | |
history_limit |
Maximum window history lines | |
history_size |
Size of history in bytes | |
host |
#H | Hostname of local host |
host_short |
#h | Hostname of local host (no domain name) |
insert_flag |
Pane insert flag | |
keypad_cursor_flag |
Pane keypad cursor flag | |
keypad_flag |
Pane keypad flag | |
line |
Line number in the list | |
mouse_any_flag |
Pane mouse any flag | |
mouse_button_flag |
Pane mouse button flag | |
mouse_standard_flag |
Pane mouse standard flag | |
pane_active |
1 if active pane | |
pane_bottom |
Bottom of pane | |
pane_current_command |
Current command if available | |
pane_dead |
1 if pane is dead | |
pane_dead_status |
Exit status of process in dead pane | |
pane_height |
Height of pane | |
pane_id |
#D | Unique pane ID |
pane_in_mode |
If pane is in a mode | |
pane_input_off |
If input to pane is disabled | |
pane_index |
#P | Index of pane |
pane_left |
Left of pane | |
pane_pid |
PID of first process in pane | |
pane_right |
Right of pane | |
pane_start_command |
Command pane started with | |
pane_synchronized |
If pane is synchronized | |
pane_tabs |
Pane tab positions | |
pane_title |
#T | Title of pane |
pane_top |
Top of pane | |
pane_tty |
Pseudo terminal of pane | |
pane_width |
Width of pane | |
pid |
Server PID | |
scroll_region_lower |
Bottom of scroll region in pane | |
scroll_region_upper |
Top of scroll region in pane | |
scroll_position |
Scroll position in copy mode | |
session_alerts |
List of window indexes with alerts | |
session_attached |
Number of clients session is attached to | |
session_activity |
Integer time of session last activity | |
session_created |
Integer time session created | |
session_last_attached |
Integer time session last attached | |
session_group |
Number of session group | |
session_grouped |
1 if session in a group | |
session_height |
Height of session | |
session_id |
Unique session ID | |
session_many_attached |
1 if multiple clients attached | |
session_name |
#S | Name of session |
session_width |
Width of session | |
session_windows |
Number of windows in session | |
socket_path |
Server socket path | |
start_time |
Server start time | |
window_activity |
Integer time of window last activity | |
window_active |
1 if window active | |
window_bell_flag |
1 if window has bell | |
window_find_matches |
Matched data from the find-window | |
window_flags |
#F | Window flags |
window_height |
Height of window | |
window_id |
Unique window ID | |
window_index |
#I | Index of window |
window_last_flag |
1 if window is the last used | |
window_layout |
Window layout description, ignoring zoomed window panes | |
window_linked |
1 if window is linked across sessions | |
window_name |
#W | Name of window |
window_panes |
Number of panes in window | |
window_silence_flag |
1 if window has silence alert | |
window_visible_layout |
Window layout description, respecting zoomed window panes | |
window_width |
Width of window | |
window_zoomed_flag |
1 if window is zoomed | |
wrap_flag |
Pane wrap flag |
tmux distinguishes between names and titles. Windows and
sessions have names, which may be used to specify them in targets and are
displayed in the status line and various lists: the name is the
tmux identifier for a window or session. Only panes
have titles. A pane's title is typically set by the program running inside the
pane and is not modified by tmux. It is the same
mechanism used to set for example the xterm(1) window title
in an X(7) window manager. Windows themselves do not have
titles - a window's title is the title of its active pane.
tmux itself may set the title of the terminal in which
the client is running, see the set-titles option.
A session's name is set with the
new-session and
rename-session commands. A window's name is set with
one of:
-n for
new-window or
new-session).
$ printf '\033kWINDOW_NAME\033\\'
automatic-rename
option.When a pane is first created, its title is the hostname. A pane's title can be set via the OSC title setting sequence, for example:
$ printf '\033]2;My Title\033\\'
tmux copies the environment
into the global environment; in addition, each session has a
session environment. When a window is created, the session
and global environments are merged. If a variable exists in both, the value
from the session environment is used. The result is the initial environment
passed to the new process.
The update-environment session option may
be used to update the session environment from the client when a new session
is created or an old reattached. tmux also
initialises the TMUX variable with some internal
information to allow commands to be executed from inside, and the
TERM variable with the correct terminal setting of
‘screen’.
Commands to alter and view the environment are:
set-environment
[-gru] [-t
target-session] name
[value]setenv)-g is used,
the change is made in the global environment; otherwise, it is applied to
the session environment for target-session. The
-u flag unsets a variable.
-r indicates the variable is to be removed from
the environment before starting a new process.show-environment
[-gs] [-t
target-session] [variable]showenv)-g. If
variable is omitted, all variables are shown.
Variables removed from the environment are prefixed with
‘-’. If -s
is used, the output is formatted as a set of Bourne shell commands.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 title of the active pane 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. By default, the window list shows the index, name and (if any)
flag of the windows present in the current session in ascending numerical
order. It may be customised with the
window-status-format and
window-status-current-format options. 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. |
~ |
The window has been silent for the monitor-silence interval. |
M |
The window contains the marked pane. |
Z |
The window's active pane is zoomed. |
The # symbol relates to the
monitor-activity window option. The window name is
printed in inverted colours if an alert (bell, activity or silence) is
present.
The colour and attributes of the status line may be configured,
the entire status line using the status-style
session option and individual windows using the
window-status-style window option.
The status line is automatically refreshed at interval if it has
changed, the interval may be controlled with the
status-interval session option.
Commands related to the status line are as follows:
command-prompt
[-I inputs]
[-p prompts]
[-t target-client]
[template]tmux to execute commands interactively.
If template is specified, it is used as
the command. If present, -I is a comma-separated
list of the initial text for each prompt. If -p
is given, prompts is a comma-separated list of
prompts which are displayed in order; otherwise a single prompt is
displayed, constructed from template if it is
present, or ‘:’ if not.
Both inputs and
prompts may contain the special character
sequences supported by the status-left
option.
Before the command is executed, the first occurrence of the
string ‘%%’ and all occurrences of
‘%1’ are replaced by the response
to the first prompt, the second
‘%%’ and all
‘%2’ are replaced with the
response to the second prompt, and so on for further prompts. Up to nine
prompt responses may be replaced
(‘%1’ to
‘%9’).
confirm-before
[-p prompt]
[-t target-client]
commandconfirm)-p is given, prompt is the
prompt to display; otherwise a prompt is constructed from
command. It may contain the special character
sequences supported by the status-left option.
This command works only from inside
tmux.
display-message
[-p] [-c
target-client] [-t
target-pane] [message]display)-p is given, the output is
printed to stdout, otherwise it is displayed in the
target-client status line. The format of
message is described in the
FORMATS section; information is taken
from target-pane if -t is
given, otherwise the active pane for the session attached to
target-client.tmux maintains a set of named paste
buffers. Each buffer may be either explicitly or automatically named.
Explicitly named buffers are named when created with the
set-buffer or load-buffer
commands, or by renaming an automatically named buffer with
set-buffer -n. Automatically
named buffers are given a name such as
‘buffer0001’,
‘buffer0002’ and so on. When the
buffer-limit option is reached, the oldest
automatically named buffer is deleted. Explicitly named are not subject to
buffer-limit and may be deleted with
delete-buffer command.
Buffers may be added using copy-mode or
the set-buffer and
load-buffer commands, and pasted into a window using
the paste-buffer command. If a buffer command is
used and no buffer is specified, the most recently added automatically named
buffer is assumed.
A configurable history buffer is also maintained 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 above).
The buffer commands are as follows:
choose-buffer
[-F format]
[-t target-window]
[template]%%’ is replaced by the buffer name
in template and the result executed as a command. If
template is not given, "paste-buffer -b
'%%'" is used. For the meaning of the -F
flag, see the FORMATS section. This
command works only if at least one client is attached.clear-history
[-t target-pane]clearhist)delete-buffer
[-b buffer-name]deleteb)list-buffers
[-F format]lsb)-F
flag, see the FORMATS section.load-buffer
[-b buffer-name]
pathloadb)paste-buffer
[-dpr] [-b
buffer-name] [-s
separator] [-t
target-pane]pasteb)-d,
also delete the paste buffer. When output, any linefeed (LF) characters in
the paste buffer are replaced with a separator, by default carriage return
(CR). A custom separator may be specified using the
-s flag. The -r flag means
to do no replacement (equivalent to a separator of LF). If
-p is specified, paste bracket control codes are
inserted around the buffer if the application has requested bracketed
paste mode.save-buffer
[-a] [-b
buffer-name] pathsaveb)-a option appends
to rather than overwriting the file.set-buffer
[-a] [-b
buffer-name] [-n
new-buffer-name] datasetb)-a option appends to rather than overwriting the
buffer. The -n option renames the buffer to
new-buffer-name.show-buffer
[-b buffer-name]showb)clock-mode
[-t target-pane]if-shell
[-bF] [-t
target-pane] shell-command
command [command]if)-b, shell-command is run in
the background.
If -F is given,
shell-command is not executed but considered
success if neither empty nor zero (after formats are expanded).
lock-serverlock)lock-command option.run-shell
[-b] [-t
target-pane] shell-commandrun)-b, the command is run in the
background. After it finishes, any output to stdout is displayed in copy
mode (in the pane specified by -t or the current
pane if omitted). If the command doesn't return success, the exit status
is also displayed.wait-for
[-L | -S |
-U] channelwait)wait-for -S with the
same channel. When -L is used, the channel is
locked and any clients that try to lock the same channel are made to wait
until the channel is unlocked with wait-for
-U. This command only works from outside
tmux.tmux understands some unofficial extensions to
terminfo(5):
tmux:
$ printf '\033]12;red\033\\'
$ printf '\033[4 q'
If Se is not set, Ss with argument 0 will be used to reset the cursor style instead.
direct
colour’ RGB escape sequence (for example,
\e[38;2;255;255;255m).tmux offers a textual interface called
control mode. This allows applications to communicate with
tmux using a simple text-only protocol.
In control mode, a client sends tmux
commands or command sequences terminated by newlines on standard input. Each
command will produce one block of output on standard output. An output block
consists of a %begin line followed by the output (which
may be empty). The output block ends with a %end or
%error. %begin and matching
%end or %error have two arguments: an
integer time (as seconds from epoch) and command number. For example:
%begin 1363006971 2 0: ksh* (1 panes) [80x24] [layout b25f,80x24,0,0,2] @2 (active) %end 1363006971 2
In control mode, tmux outputs
notifications. A notification will never occur inside an output block.
The following notifications are defined:
%exit
[reason]tmux client is exiting immediately, either
because it is not attached to any session or an error occurred. If
present, reason describes why the client
exited.%layout-change
window-id window-layout
window-visible-layout
window-flags%output
pane-id value%session-changed
session-id name%session-renamed
name%sessions-changed%unlinked-window-add
window-id%window-add
window-id%window-close
window-id%window-renamed
window-id nametmux configuration file.tmux session running
vi(1):
$ tmux new-session viMost commands have a shorter form, known as an alias. For
new-session, this is new:
$ tmux new viAlternatively, 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’ (or by an external event such as ssh(1)
disconnection) and reattached with:
$ tmux attach-sessionTyping ‘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-style 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 %%'" bind-key S command-prompt "new-window -n %1 'ssh %1'"
| November 22, 2024 | BSD |