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I've been trying to think of an escape character to use for screen that isn't already used by any of the programs I use, and I've settled on Ctrl+`. The default Ctrl+a is unacceptable for me because it's the bash shortcut for jumping to the beginning of a line. However, when I add the following to ~/.screenrc:

escape ^``

screen does not seem to recognize Ctrl+` as the escape key. Is there any way to use the combination Ctrl+`, and if not, does anyone have a suggestion for an escape key that isn't used in many progams?

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If you're a vi/vim user, you could combine the best (worst?) of both worlds and make your escape Ctrl+Esc. But for ease-of-use, my fingers seem to enjoy Ctrl+h, because I use both hands and keep them on the home row. –  new123456 Jul 29 '11 at 19:16

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One idea that may work: in a normal terminal outside of screen, run cat and type Ctrl-` and see what you get. For me it is ^@. Then in screen use escape ^@` and now Ctrl-` should work as your command key.

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Yes, for me it was ^@ also, and adding "escape ^@`" to .screenrc worked. Thank you very much! :) –  Fredrick Jul 29 '11 at 21:52
    
@Fredrick Note that there are apparently multiple keys which generate ^@, e.g. Ctrl-2 for me. This shouldn't be a problem since if the terminal emulator can't distinguish them nothing running inside it would be expected to - just be aware you may have multiple command keys with that mapping. –  jw013 Jul 30 '11 at 2:41

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