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If you are running tmux locally and you shell into another machine to access tmux remotely, you will suddenly find yourself in tmux inception. You will have a tmux instance running within your local tmux instance. If you have the same prefix key set for both, then you may be wondering how you can send a tmux command to the inner tmux instance.

If you press your prefix twice (e.g. <C-a> <C-a>), then the second prefix will be sent to the inner tmux instance which will then be listening for the rest of your command. So, to open a new window within the inner tmux instance, you can hit <C-a> <C-a> c.

Via jbranchaud/til.

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