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I have been using GNU screen for a couple of days and the CTRL-A navigation is beginning to wear on me. How can I remap this key combo and what are some common replacements for these keys? For example, in Vim I use jj instead of <esc> because it doesn't require me to break my typing form.

Note: Alex explains how to map the key combo, however, adding the binding to .screenrc did not work for me. I added it to etc\screenrc and that worked. The .screenrc method seems to work for most people, I am not sure why not on my system.

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To make it CTRL+J, use the following in .screenrc.

escape ^Jj

To quote the manpage,

 escape xy

Set the command character to x and the character generating a literal command character (by triggering the "meta" command) to y (similar to the -e option). Each argument is either a single character, a two-character sequence of the form "^x" (meaning "C-x"), a backslash followed by an octal number (specifying the ASCII code of the character), or a backslash followed by a second character, such as "\^" or "\". The default is "^Aa".

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When the changes are made, CTRL+J is supposed to function as CTRL+A is that correct? – Dru May 8 '12 at 20:14
I have escape ^Jj^ in my root directory's .screenrc file and the user's home directory's file. I rebooted screen and also restarted the ssh session that I was in. None of these worked, I expected CTRL+J to behave as CTRL+A – Dru May 8 '12 at 20:15
Do you have an extra caret on the end of that? Should be escape ^Jj, not escape ^Jj^. – Alex Hirzel May 8 '12 at 20:54
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Maybe there's a conflict with other bindings but I have tried several keys. – Dru May 8 '12 at 21:10
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You can also just press Ctrl + a, and type ': escape ^Jj' (like in vi) to change the mapping dynamically. – rags Oct 31 '12 at 10:45
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