I just trying to understand What does it mean when a file is owned by the user “system” and the group “system”? in the android file system.
In the android device file system
root@xyz:/ # ls -l cache/
drwxrwxr-x system system 1969-12-31 17:00 SH_DIR
drwx------ system system 2021-06-02 23:26 backup
drwxrwx--- root root 2021-06-02 23:17 lost+found
drwxrwxrwx root root 2021-06-08 02:12 test
drwxrwx--- system cache 2021-06-07 05:40 recovery
For SH_DIR and backup have owned by the user “system” and the group “system”.
Thanks in advance.
1000and GID1000in Discretionary access control. Getting familiar with DAC is usually the first step in the introduction of any Linux/UNIX based system, including MAC and even Windows (though with major differences in nomenclature). This answer of mine includes some details on Android's DAC. And this one a little more. – Irfan Latif Jun 08 '21 at 16:51