id man page

id — print real and effective user and group IDs


id -u

id -g


id [OPTION]... [USER]


Print user and group information for the specified USER, or (when USER omitted) for the current user.

ignore, for compatibility with other versions
-Z, --context
print only the security context of the process
-g, --group
print only the effective group ID
-G, --groups
print all group IDs
-n, --name
print a name instead of a number, for -ugG
-r, --real
print the real ID instead of the effective ID, with -ugG
-u, --user
print only the effective user ID
-z, --zero

delimit entries with NUL characters, not whitespace;

not permitted in default format

display this help and exit
output version information and exit

Without any OPTION, print some useful set of identified information.


Written by Arnold Robbins and David MacKenzie.

Reporting Bugs

GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report id translation bugs to <http://translationproject.org/team/>

See Also

Full documentation at: <http://www.gnu.org/software/coreutils/id>
or available locally via: info '(coreutils) id invocation'

Referenced By

credentials(7), qaxbase.3qt(3), sg(1).

Explore man page connections for id(1).

GNU coreutils 8.25 October 2016