Setting nullglob causes variables containing backslashes to be expanded to an empty string

[Mohamed Akram]

Bash version: GNU bash, version 5.0.7(1)-release (x86_64-apple-darwin18.5.0)

Example:

shopt -s nullglob
a='\x30'
echo $a

Expected output:

\x30

Actual output:

Re: count in vi mode alters prompt

[Mohamed Akram]

Is there a way to disable this feature, at least in vi mode?

> On May 20, 2024, at 5:27 PM, Chet Ramey  wrote:
> 
> On 5/18/24 5:28 PM, mohd.ak...@outlook.com wrote:
> 
>> Bash Version: 5.2
>> Patch Level: 26
>> Release Status: release
>> Description:
>>  When using vi mode in bash, whenever a count is used before a command,
>>  bash replaces the prompt with (arg: n) where n is the count entered.
>>  This causes the entire line to shift, which is particularly jarring if
>>  a long prompt is used, as is common.
> 
> This is standard readline behavior in both emacs and vi mode.
> 
> -- 
> ``The lyf so short, the craft so long to lerne.'' - Chaucer
>``Ars longa, vita brevis'' - Hippocrates
> Chet Ramey, UTech, CWRUc...@case.eduhttp://tiswww.cwru.edu/~chet/
> 

Re: count in vi mode alters prompt

[Mohamed Akram]

I’ve opened an issue in the readline repo for this with a patch if there’s 
interest.

https://savannah.gnu.org/support/?111068

I had been using this patch for some months in my own build of bash and it seems
to be working well. More recently I’ve just used the default zsh on a new 
machine
since it doesn’t have this issue, but it would be good to align bash with the 
other
shells in this regard.

Mohamed

> On May 20, 2024, at 5:51 PM, Chet Ramey  wrote:
> 
> On 5/20/24 9:34 AM, Mohamed Akram wrote:
>> Is there a way to disable this feature, at least in vi mode?
> 
> No.
> 
> -- 
> ``The lyf so short, the craft so long to lerne.'' - Chaucer
> ``Ars longa, vita brevis'' - Hippocrates
> Chet Ramey, UTech, CWRUc...@case.eduhttp://tiswww.cwru.edu/~chet/
>