Re: It is possible that this can be a bug

[Hugo Napoli]

I will, and the suggestions and examples that you both told me, were
excellent, and a display of remarkable generosity and value.
As an educator, I have now learned more solid criteria for teaching some
BASH techniques to my students.
Starting tomorrow, we will be discussing and observing all of this in the
classroom.
"I apologize for not providing better guidance": your guidance, and the
guidance of Martin, was really laudable and I'm so glad because of this.
Thank you for the link shared (I was reading it), thanks you for all this,
and thank also for writing the comments in Spanish. Chapeau, thumbs up!

Big hug!


*Hugo Napoli*

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El lun, 26 jun 2023 a la(s) 17:20, Dennis Williamson (
dennistwilliamson@gmail.com) escribió:

>
> On Mon, Jun 26, 2023, 2:47 PM Hugo Napoli <hugonapoli@gmail.com> wrote:
>
>> Dear Dennis and Martin, thank you very much for the quick response.
>>
>> From now on, I'll use *exec bash "$0" *instead of *bash "$0"*.
>> What I'm wondering is (now that I understand why this happened) if there
>> is some special situation where it's actually worth using *bash "$0"*.
>> If you have any ideas, I will really appreciate it if you can share them
>> with me.
>>
>> As for using *a=$((b+c))*, I'll also start using *((a=b+c))* whenever
>> possible, leaving out the "$", as suggested.
>>
>> Thank you very much, also, for the examples you have shown me. I have
>> learned BASH mostly self-taught. I think this is why I have been making
>> these mistakes.
>>
>>
>> *Hugo Napoli *
>>
>>>
>>>
>>>
> I would suggest that you use a loop as shown in Greg's message. I answered
> showing exec since it followed the structure of your original script. It's
> very unusual to use that technique in a script such as yours. I apologize
> for not providing better guidance.
>
> Also using $0 only works in certain circumstances and shouldn't be relied
> on in all cases. https://mywiki.wooledge.org/BashFAQ/028
>
>>