Test whether file is owned by a specific group from bash or powershell level?

[Sam Edge]

On 20/06/2025 16:20, Sam Edge via Cygwin wrote:
> On 20/06/2025 13:15, Sebastian Feld via Cygwin wrote:
>> Does Cygwin or POSIX have a tool to test whether a file is owned by a
>> specific group?
>>
>> Win32, like Linux and POSIX, has the concept that files have an owner,
>> and a group (ref:https://learn.microsoft.com/en-us/windows/win32/api/ 
>> aclapi/nf-aclapi-getsecurityinfo).
>>
>> How can I test whether a file is owned by a given group name, or not?
>> /usr/bin/test -g and -G do not help because they only look and gid,
>> egid. But I want to pass the group's name as an argument.
>>
>> Sebi
> 
> Group name:
> stat -c %G <file>
> 
> Group ID:
> stat -c %g <file>
> 
> 
> 

Sorry, so:

[ "$(stat -c %G myfile)" = mygroup ]

will return true (i.e. $? zero) if myfile is owned by mygroup.

-- 
Sam Edge
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