CTRL+A moves the cursor to the beginning of the lines, which significantly speeds up the workflow. However, as GNU screen is considered,
CTRL+A is the prefix of all commands, such as
CTRL+A + D to detach a screen. Inside screen,
CTRL+A won’t move the cursor around.
The solution is to replace all
CTRL in the knowledge about bash/zsh/etc with
CTRL+A. As an example, suppose we need to move the cursor to the beginning, we press
CTRL+A first, then release, followed by
A. The release of
CTRL+A is critical otherwise we would excute some GNU screen command.