title: If I set key bind of C-b to c-a in tmux how can I move the cursor to the beginning of the line?
body: <p>I just move from GNU screen to tmux, in screen when I hit <code>C-a</code>, then type <code>a</code> again can take me to the beginning of the line, I wonder if I stick with <code>C-a</code> in tmux how can I work around this?</p>