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Linux / Unix id command

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About id
Syntax
Examples
Related commands
Linux / Unix main page

About id

Shows you the numeric user and group ID on BSD.

Syntax

id [-a] [-G] [-g] [-u] [user]

 

-a Reports user name, use  ID and all the groups to which the user belongs.
-G Output all different group IDs (effective, real and supplementary) only, using the format "%u\n". If there is more than one distinct group affiliation, output each such affiliation, using the format " %u", before the new line character is output.
-g Output only the effective group ID, using the format "%u\n".
-n Output the name in the format "%s" instead of the numeric ID using the format "%u".
-r Output the real ID instead of the effective ID.
-u Output only the effective user ID, using the format "%u\n".
user The user (login) name for which information is to be written.

Examples

id - Typing id alone will report the user id and group similar to the following:

uid=12345(comphope) gid=12(users)

Related commands

finger
fold
logname
who

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