* David Christensen <dpchrist@holgerdanske.com> [22-06/02=Th 19:18 -0700]:
[...]
Now I can almost match your prompt -- there is a dash before 'bash':
2022-06-02 19:05:10 dpchrist@laalaa ~
$ PS1="\\h/${TTY#/dev/} \\s$SHLVL \\w \\A \$?\\\$"
laalaa/pts/8 -bash1 ~ 19:08 0$
The dash seems to be coming from the '\s' bash(1) -> PROMPTING ->
backslash-escaped special characters:
2022-06-02 19:12:58 dpchrist@laalaa ~
$ PS1="\\s"
-bash
The dash indicates you're running a login shell. That's useful
information, because a login shell is initialized differently.
See section INVOCATION in `man bash`.
You see in the rendered prompt it says "-bash1"; "1" is $SHLVL.
If you run another bash from inside that bash, and again set PS1
as you did above, you should see "bash2" instead of "-bash1".