Users of Androi

Android Basic 4 types of users:

User type	User Sub-string	Uid	Gid
Root	Root	0	0
System	System	1000	1000
Shell	Shell	2000	2000
App	Usernum_appnum	uid>10000	gid>10000

App users, the GID you see may be u0_a0 and the like (Usernum_appnum)

(depending on the application, A0 is also a1,a2,a3 ....) Represents an app for User0)

What about the other non-integer user types? (Is it between these numbers?) ）

Of course there are other, such as cache (for example gid=2001), nobody (gid=9999, but 9999 is not used) etc.

Some are used, and there is no, so there will be nobody

Like you went into the/DATA/DATA/COM.TENCENT.QQ directory.

Ls-l can see that the UID is u0_a59 GID is u0_a59

View Current User:

1. ADB shell (enter the shell environment)

2. WhoAmI (view user substring)

3. ID (see the user's specific information, such as UID, GID, groups, etc.)----This command more detailed

< Here's an example diagram >

View the UID & GID of a specific file? With Ls-l

For example:

Ls-l/system/app (you can see the UID and GID of the file here is root)

< Here's an example diagram >

Users of Androi