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The default command C-b l to switch between two latest windows doesn't work on my Ubuntu 16.04. But it works if set bind-key l last-window after started tmux server.

I tried to set the bind key command in ~/.tmux.conf: bind-key l last-window or bind-key a last-window

C-b l still doesn't work, but C-b a works.

Why C-b l doesn't work? How to trace the issue?

Reference:

How to switch between two latest windows in tmux?

Ubuntu tmux manual

  • It works for me in Kubuntu 16.04 (I use F1 instead of C-b). – Gribouillis Aug 20 '17 at 8:21
  • @Gribouillis, Thanks for your comments. I tried with F1 as the prefix key, it is the same for Ubuntu 16.04. F1 l doesn't work, but F1 a works. I want to keep the default prefix key. So any idea? – Peter Aug 20 '17 at 12:29
  • Did you check by typing C-b : to enter command mode, then list-keys ? – Gribouillis Aug 20 '17 at 13:07
  • @Gribouillis, yes, I checked with list-keys, only bind-key -T prefix a last-window is display, but defalut prefix l is not – Peter Aug 20 '17 at 13:34
  • Try perhaps bind-key 'l' last-window (with quotes) – Gribouillis Aug 20 '17 at 13:37
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Try to remove ~/.tmux.conf as in this thread.

List my steps: 1. find the bind key with tmux list-keys | grep "prefix l" 2. If exists with another command, remove it from .tmux.conf and restart your tmux; if it does not exist, your setting for bind key is not effective.

  • I edited the answer and list my steps here. I didn't use tmux kill-server – Peter Aug 21 '17 at 8:49
  • @user1086907 Now I don't understand the second step. In your case, what was the result of tmux list-keys | grep "prefix l" ? Also you removed the ~/.tmux.conf didn't you? – Gribouillis Aug 21 '17 at 8:54
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    I restore the ~/.tmux.conf after found that the issue caused by it, then tmux list-keys | grep "prefix l", and found that the shortcut is bound for another command. – Peter Aug 21 '17 at 9:41

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