find command says: unknown group XYZ This question is the next part of this question. I'm trying to use find command (Android 4.2.1; Busybox installed, have root access) to list files owned by a specific group under /, but every time I use it I get the same reply. E.g. I'm trying to find all the files owned by group adb using find / -group adb and the output says:


  find: unknown group adb


I tried both single-double quotes but no effect. Tried for other groups but no effect again.

How should I use find then?
The method of using find is correct.

However there is no group "adb".

Run id -p to get all groups. You will get 


  groupid(name)


Then run find / -group &lt;groupid&gt;. 


  The groupid is an integer.