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From: Francois Lafont <francois.lafont@nospam.invalid>
Date: Tue, 12 Jan 2021 02:11:47 +0100
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On 1/12/21 2:02 AM, Francois Lafont wrote:

> -------------------------------------------------------------
> ~# whoami
> root
> 
> ~# b=/usr/sbin/apache2
> 
> ~# namei -mox "$b"
> f: /usr/sbin/apache2
>   Drwxr-xr-x root root /
>   drwxr-xr-x root root usr
>   drwxr-xr-x root root sbin
>   -rwxr-xr-x root root apache2
> 
> ~# echo "import os; x = os.access('$b', os.W_OK); print(x)" | python
> True
> 
> ~# [ -w "$b" ] && echo WRITABLE
> WRITABLE
> -------------------------------------------------------------

Je précise que, lorsque je lis la page man access(2) de ma Ubuntu, j'ai
bien ETXTBSY considéré comme une erreur. Du coup, sur Linux, le comportement
ne me paraît effectivement pas en cohérence avec ce que je lis dans la
page man.

-- 
François Lafont