ls *.ws is not working with wildcard *

Details, please!

What Ubuntu release are you running?

What exactly are you doing, what do you expect to happen and what happens instead?

Linux mint 20.3 cinnamon
uname -a gave the following

Linux k3 5.4.0-149-generic #166-Ubuntu SMP Tue Apr 18 16:51:45 UTC 2023
x86_64 x86_64 x86_64 GNU/Linux

$ ls *.pdf|wc -l
82

Sometimes the ls *.pdf gives error at random. It simply stops working and
then starts working after some time. In short it is unreliable

On Sat, 27 May, 2023, 11:46 PM Manfred Hampl, <
<email address hidden>> wrote:

> Your question #706813 on coreutils in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/coreutils/+question/706813
>
> Status: Open => Needs information
>
> Manfred Hampl requested more information:
> Details, please!
>
> What Ubuntu release are you running?
>
> What exactly are you doing, what do you expect to happen and what
> happens instead?
>
> --
> To answer this request for more information, you can either reply to
> this email or enter your reply at the following page:
> https://answers.launchpad.net/ubuntu/+source/coreutils/+question/706813
>
> You received this question notification because you asked the question.
>

i will try to replicate the error thru a screenshot when it happens next
time as it is not happening now. The status of this question could be kept
pending till such time.

On Sun, May 28, 2023 at 2:06 AM K S <email address hidden> wrote:

> Linux mint 20.3 cinnamon
> uname -a gave the following
>
> Linux k3 5.4.0-149-generic #166-Ubuntu SMP Tue Apr 18 16:51:45 UTC 2023
> x86_64 x86_64 x86_64 GNU/Linux
>
> $ ls *.pdf|wc -l
> 82
>
> Sometimes the ls *.pdf gives error at random. It simply stops working and
> then starts working after some time. In short it is unreliable
>
> On Sat, 27 May, 2023, 11:46 PM Manfred Hampl, <
> <email address hidden>> wrote:
>
>> Your question #706813 on coreutils in Ubuntu changed:
>> https://answers.launchpad.net/ubuntu/+source/coreutils/+question/706813
>>
>> Status: Open => Needs information
>>
>> Manfred Hampl requested more information:
>> Details, please!
>>
>> What Ubuntu release are you running?
>>
>> What exactly are you doing, what do you expect to happen and what
>> happens instead?
>>
>> --
>> To answer this request for more information, you can either reply to
>> this email or enter your reply at the following page:
>> https://answers.launchpad.net/ubuntu/+source/coreutils/+question/706813
>>
>> You received this question notification because you asked the question.
>>
>

--
-----

Manfred Hampl suggests this article as an answer to your question:
FAQ #3041: “No support for Linux Mint”.

None of the Ubuntu based distributions are supported by the Ubuntu community. The mint community is separate from the Ubuntu community.
I suggest you post on the mint forum here
https://forums.linuxmint.com/