Dear all,
I have noticed strange behaviour if my PS1 variable contains "the history
number of this command" (\!). When the prompt returns after invoking the
edit-and-execute-command (C-xC-e) the history number is not increased. If I
then press return, the history number is increased by two (or more,
depending on how many lines(?) I entered with the editor). Also, if I then
list the history, I notice that both, the part that was entered in the line
before invoking (C-xC-e) and the part actually executed, are listed in
history. The history number shown in the prompt before invoking C-xC-e
refers to the partially constructed line (or empty, if nothing was
entered). The actual history number I have to use to rerun the command is
one higher.
I assume this is not the intended behaviour.
Steps to reproduce (<C-xC-e> marks where the key combination is pressed):
$ env -i /bin/bash --norc --noprofile
bash-4.3$ echo $BASH_VERSION
4.3.42(1)-release
bash-4.3$ EDITOR=vim
bash-4.3$ PS1='\! > '
4 > ls |<C-xC-e>
ls | grep foo
4 >
6 > history
1 echo $BASH_VERSION
2 EDITOR=vim
3 PS1='\! > '
4 ls |
5 ls | grep foo
6 history
7 >
I get similar behaviour with 4.3.33(2)-release, and 3.2.51(1)-release.
Thank you for your time and your dedication!
Best regards,
Jure
