On Mon, Mar 21, 2022 at 4:01 AM Michaelll Lee <lwl2...@gmail.com> wrote:
> . . . > While using non-printing characters without "\[...\]" proves to be fine in > versions prior to 5.x.x (e.g., many suggestions from some online forums > have suggested "PS1=\e[0m" for using ANSI escape code in the prompt), the > same configuration in 5.x.x is not as stable as the previous versions(i.e., > "PS1=\[\e[0m\]" should be used instead of "PS1=\e[0m", otherwise the > unexpected behavior(STEP7) will happen). > . . . Note that the difference you see in Bash 5 is due to new paste behavior. However, prior versions are *not* fine without the escaped brackets. Bash loses track of the position of the cursor if there are unbracketed non-printing sequences. This is visible when stepping back through commands in history and a long command wraps, for an example. https://mywiki.wooledge.org/BashFAQ/053
