id(1): print real/effective user/group IDs
Archived: 2026-04-06 03:10:51 UTC
id(1) - Linux man page
Name
id - print real and effective user and group IDs
Synopsis
id [OPTION]... [USERNAME]
Description
Print user and group information for the specified USERNAME, or (when USERNAME omitted) for the current
user.
-a
ignore, for compatibility with other versions
-Z, --context
print only the security context of the current user
-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
--help
display this help and exit
--version
output version information and exit
Without any OPTION, print some useful set of identified information.
Author
Written by Arnold Robbins and David MacKenzie.
https://linux.die.net/man/1/id
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Reporting Bugs
Report id bugs to bug-coreutils@gnu.org
GNU coreutils home page: General help using GNU software: Report id translation bugs to Copyright
Copyright © 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later
.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted
by law.
See Also
The full documentation for id is maintained as a Texinfo manual. If the info and id programs are properly installed
at your site, the command
info coreutils aqid invocationaq
should give you access to the complete manual.
Referenced By
newgrp(1), qaxbase(3), sg(1)
Source: https://linux.die.net/man/1/id
https://linux.die.net/man/1/id
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