Re: pwd default behavior

On 2/6/26 10:18, Chris Hill wrote:
> On Fri, 6 Feb 2026, Jin Guojun[VFF] wrote:
>
>> On 2/6/26 08:30, Dag-Erling Sm?rgrav wrote:
>>> Simon Wollwage <[email protected]> writes:
>>>> While reading the code for /bin/pwd, I noticed that the default 
>>>> behavior
>>>> in the code is to assume -P if no arguments are supplied, but 
>>>> according
>>>> to POSIX it shoud be -L
>>>> (https://pubs.opengroup.org/onlinepubs/9799919799/utilities/pwd.html)
>>>>
>>>> Is it for convenience reasons or other technical reasons? Seems 
>>>> like an
>>>> easy change to make it compliant.
>>> It makes very little difference in practice as pwd(1) is usually a 
>>> shell
>>> built-in, but: https://reviews.freebsd.org/D55146
>>>
>>> DES
>>
>> It does make some difference because one wants to know where one 
>> really is at :-)
>>
>> Since there is another command "dirs" which does "pwd -L", so pwd 
>> defaulting to -P makes sense to provide the real location.
>
> `dirs` exists in csh. In my shell, /bin/sh, there is no `dirs` and 
> `pwd` defaults to the -L behavior.
>
The man page should be updated to reflect the different behaviors 
between sh and csh.