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   tmux    ( 1 )

оконечный мультиплексор (terminal multiplexer)

COMMAND PARSING AND EXECUTION

tmux supports a large number of commands which can be used to
     control its behaviour.  Each command is named and can accept zero
     or more flags and arguments.  They may be bound to a key with the
     bind-key command or run from the shell prompt, a shell script, a
     configuration file or the command prompt.  For example, the same
     set-option command run from the shell prompt, from ~/.tmux.conf and
     bound to a key may look like:

$ tmux set-option -g status-style bg=cyan

set-option -g status-style bg=cyan

bind-key C set-option -g status-style bg=cyan

Here, the command name is 'set-option', '-g' is a flag and 'status-style' and 'bg=cyan' are arguments.

tmux distinguishes between command parsing and execution. In order to execute a command, tmux needs it to be split up into its name and arguments. This is command parsing. If a command is run from the shell, the shell parses it; from inside tmux or from a configuration file, tmux does. Examples of when tmux parses commands are:

- in a configuration file;

- typed at the command prompt (see command-prompt);

- given to bind-key;

- passed as arguments to if-shell or confirm-before.

To execute commands, each client has a 'command queue'. A global command queue not attached to any client is used on startup for configuration files like ~/.tmux.conf. Parsed commands added to the queue are executed in order. Some commands, like if-shell and confirm-before, parse their argument to create a new command which is inserted immediately after themselves. This means that arguments can be parsed twice or more - once when the parent command (such as if-shell) is parsed and again when it parses and executes its command. Commands like if-shell, run-shell and display-panes stop execution of subsequent commands on the queue until something happens - if-shell and run-shell until a shell command finishes and display-panes until a key is pressed. For example, the following commands:

new-session; new-window if-shell "true" "split-window" kill-session

Will execute new-session, new-window, if-shell, the shell command true(1), split-window and kill-session in that order.

The COMMANDS section lists the tmux commands and their arguments.