How to rename a window in tmux

Busy tmux sessions become hard to navigate when every window keeps a shell-derived name such as zsh, bash, or editor. A manual window label puts the job name in the status bar and window list, which reduces wrong-window jumps when switching by number or targeting windows from later tmux commands.

The rename-window command changes the tmux window name without restarting the shell or changing pane contents. In an attached client, the default Ctrl+b then comma binding opens the same rename prompt for the current window, while the shell command form is clearer for scripts and for renaming a specific session:window target.

Targets can match a window by index, ID, or name, so list the windows before renaming and use the index when the existing name is about to change. A manual rename normally disables automatic renaming for that window, but explicit automatic-rename settings or terminal-driven rename sequences can still replace a label later, so verify the final list before using the new name in navigation or automation.

Steps to rename a tmux window:

List the windows in the target session before renaming anything.
```
$ tmux list-windows -t work
0: shell* (1 panes) [80x24] [layout b25d,80x24,0,0,0] @0 (active)
```
The index at the start of the line is the most reliable target because it does not change when the window name changes.
Rename the target window to the new label.
```
$ tmux rename-window -t work:0 editor
```
The last argument is the replacement name, so this command changes window 0 in session work from shell to editor immediately.
Verify that the new name now appears in the window list.
```
$ tmux list-windows -t work
0: editor* (1 panes) [80x24] [layout b25d,80x24,0,0,0] @0 (active)
```
The asterisk marks the current window, and the new name is the label that now appears in the status bar and in later window targets.
Check automatic renaming if a manual label changes back unexpectedly.
```
$ tmux show-options -w -t work:0 automatic-rename
automatic-rename off
```
rename-window normally turns automatic-rename off for the renamed window. If this prints on, run tmux set-option -w -t work:0 automatic-rename off and rename the window again.

If a program inside the active pane still changes the label, disable the separate allow-rename option before relying on the name in scripts or status-line rules.