su
Command Function
This command is used to switch the user account.
Syntax
su [uid] [gid]
Parameters
Table 1 Parameter description
| Parameter | Description | Value Range |
|---|---|---|
| uid | Specifies the ID of the target user. | - Left blank - [0, 60000] |
| gid | Specifies the ID of the target user group. | - Left blank - [0, 60000] |
Usage Guidelines
-
If no parameter is specified, the su command switches to user root by default. The uid and gid for user root are both 0.
-
If uid and gid are specified, this command allows commands to be executed as the user with the specified uid and gid.
-
If the input parameter is out of the range, an error message will be printed.
Example
Run su 1000 1000.
Output
The user with both uid and gid of 1000 is switched.
OHOS # ls
Directory /data/system/param:
-rw-r--r-- 0 u:0 g:0 hello_1.txt
OHOS # su 1000 1000
OHOS # touch hello 2.txt
OHOS # ls
Directory /data/system/param:
-rw-r--r-- O u:1000 g:1000 hello 2.txt
-гw-r--r-- 0 u:0 g:0 hello_1.txt