Re: group '545' does not exist ?

Marco Atzeri via Cygwin <[email protected]> Sun, 14 Dec 2025 10:12:45 +0100

Newsgroups	gmane.os.cygwin
Message-ID	<[email protected]>

On 05/12/2025 19:48, Corinna Vinschen via Cygwin wrote:

>> Right now, our newgrp is commandline compatible with Linux' newgrp from
>> shadow-utils:
>>
>> - A single '-' reinitializes the environment.
>> - The group must be given as name, not as GID.
>>

Hi Corinnathe current version of newgroup is NOT doing so.
It spins a new shell process

$ pstree
?─┬─?───sshd
   ├─mintty───bash───pstree
   └─ssh-agent

$ newgrp - Users

$ pstree
?─┬─?───sshd
   ├─mintty───bash───bash───pstree
   └─ssh-agent


Noticed as it is very easy to bomb the enviroment.

Regards
Marco



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