Linux command: ID

ID Introduction to Commands:

This command is used to view the user's account attribute information

1 . command format:

ID [option] USERNAME

2 . Command function:

used to view the attribute information for a user account that already exists on the system.

[[email protected] test1]# ID Tom

uid=666 (Tom) gid=666 (Tom) group =666 (Tom), (Donggen)

3. Command parameters:

- u View only the user's ID number uid

- G View only the user's group ID number GID

- G View only the user's additional group ID number GID

- N Viewing user information is displayed as a name and is not displayed with an ID number and is used with-u-g-G.

4. Command instance:

1, id-u Tom Display user Tom's UID number

[Email protected] test1]# id-u Tom

666

2, id-g Tom Display user Tom's GID number

[Email protected] test1]# id-g Tom

666

3, id-g Tom Display user Tom's GID number (additional group number)

[Email protected] test1]# id-g Tom

666 500 The default attachment group must have one base group and other attachment groups.

4. ID-G-N Tom displays user Tom's GID number (additional group number) and displays it by name

[Email protected] test1]# id-g-N Tom

Tom Donggen

5.

This article is from the "Learn Linux history" blog, please be sure to keep this source http://woyaoxuelinux.blog.51cto.com/5663865/1861065

Linux command: ID