Android is Linux-based, so file access rights are the same as Linux. where R stands for readable, W stands for writable, and X represents executable.
File access rights are divided into three groups.
1-3 Current User (app) access rights.
4-6 access rights for the current user's group.
7-9 other User (app) access rights.
The Android app is a standalone user that corresponds to a separate group.
You can view user groups and user IDs by using the following directives:
To force modification of file access permissions:
----------(first-represents the directory, followed by three groups of permissions-on behalf of 0)-rw-------(on behalf of the current user readable writable) (corresponds to the decimal-----"0")-rw-rw-rw-(Global readable writable)---------- > 0 666 So you can change the file access via adb SehlL in the mobile terminal using chmod instructions, thecd+ package name is as follows:
Android Advanced file access rights