How to rename a pane in tmux?

Do you mean tmux window? Ctrl + b + , if you have C-b as send prefix (it's by default)

Also C-b :rename-window <new name> and tmux rename-window <new name> work too.

As I know you can't rename pane

yes you can rename pane names, and not only window names starting with tmux >= 2.3. Just type the following in your shell:

printf '\033]2;%s\033\\' 'title goes here'

you might need to add the following to your .tmux.conf to display pane names:

# Enable names for panes
set -g pane-border-status top

you can also automatically assign a name:

set -g pane-border-format "#P: #{pane_current_command}"

For those scripting tmux, there is a command called rename-window so e.g.

tmux rename-window -t <window> <newname>

For those who want to easily rename their panes, this is what I have in my .tmux.conf

set -g default-command '                      \
function renamePane () {                      \
  read -p "Enter Pane Name: " pane_name;      \
  printf "\033]2;%s\033\\r:r" "${pane_name}"; \
};                                            \
export -f renamePane;                         \
bash -i'
set -g pane-border-status top
set -g pane-border-format "#{pane_index} #T #{pane_current_command}"
bind-key -T prefix R send-keys "renamePane" C-m

Panes are automatically named with their index, machine name and current command. To change the machine name you can run <C-b>R which will prompt you to enter a new name.

*Pane renaming only works when you are in a shell.

How to rename a pane in tmux?

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