In order to change tmux's prefix key from
Ctrl-a it seems to be enough to include the statement
set-option -g prefix C-a in tmux's configuation file (e.g.
~/.tmux.conf). But Arch's Wiki article about tmux suggests the following sequence of statements to achieve the same effect:
For example, the default prefix binding of Ctrl-b can be changed to Ctrl-a by adding the following commands in your configuration file:
unbind C-b set -g prefix C-a bind C-a send-prefix
So which approach is the right one?