Select double digit pane in tmux

2 min read 06-10-2024
Select double digit pane in tmux


Navigating Tmux Panes with Ease: Selecting Double-Digit Panes

Tmux, the powerful terminal multiplexer, allows you to split your terminal into multiple panes, each running its own independent process. While navigating between these panes with single-digit numbers is straightforward, selecting double-digit panes requires a slightly different approach. This article will guide you through the process, providing clarity and practical examples.

The Challenge of Double-Digit Panes

Imagine you've split your terminal into more than nine panes, and you want to switch to, say, pane 12. Simply pressing Ctrl + b followed by 1 and 2 won't work. Tmux interprets this as selecting pane 1 and then pane 2, which is not what we want.

Here's an example using the following code:

# Split into multiple panes
tmux new-window -d -t 0
tmux split-window -v -t 0.0
tmux split-window -h -t 0.1
tmux split-window -v -t 0.2
tmux split-window -h -t 0.3
tmux split-window -v -t 0.4
tmux split-window -h -t 0.5
tmux split-window -v -t 0.6
tmux split-window -h -t 0.7
tmux split-window -v -t 0.8
tmux split-window -h -t 0.9
tmux split-window -v -t 0.10
# Select pane 12
tmux select-pane -t 0.12 
# ...

This scenario exemplifies the challenge of selecting double-digit panes in Tmux.

The Solution: Using Prefix Keys

Tmux uses prefix keys to execute commands. The default prefix is Ctrl + b. To select a double-digit pane, you need to use the prefix followed by the number:

  • Ctrl + b followed by the pane number

So, to select pane 12, you would use the following key combination:

Ctrl + b 1 2

Additional Tips and Tricks

  • Using the : (colon) for larger numbers: For even higher pane numbers, you can use the colon (:). For example, to select pane 23, you'd use Ctrl + b : 23.
  • Ctrl + b followed by . for the current pane: The . key lets you select the currently active pane.

Conclusion

Selecting double-digit panes in Tmux is straightforward once you understand the correct method. Remember to use the Ctrl + b prefix followed by the pane number. By using this technique, you can efficiently navigate through your complex Tmux sessions, maximizing productivity and making your workflow smoother.

Additional Resources: