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NAME | SYNOPSIS | DESCRIPTION | AUTHOR | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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ID(1) User Commands ID(1)
id - print real and effective user and group IDs
id [OPTION]... [USER]...
Print user and group information for each specified USER, or (when
USER omitted) for the current process.
]8;;https://www.gnu.org/software/coreutils/manual/coreutils.html#id-a\-a]8;;\ ignore, for compatibility with other versions
]8;;https://www.gnu.org/software/coreutils/manual/coreutils.html#id-Z\-Z, --context]8;;\
print only the security context of the process
]8;;https://www.gnu.org/software/coreutils/manual/coreutils.html#id-g\-g, --group]8;;\
print only the effective group ID
]8;;https://www.gnu.org/software/coreutils/manual/coreutils.html#id-G\-G, --groups]8;;\
print all group IDs
]8;;https://www.gnu.org/software/coreutils/manual/coreutils.html#id-n\-n, --name]8;;\
print a name instead of a number, for -u,-g,-G
]8;;https://www.gnu.org/software/coreutils/manual/coreutils.html#id-r\-r, --real]8;;\
print the real ID instead of the effective ID, with
-u,-g,-G
]8;;https://www.gnu.org/software/coreutils/manual/coreutils.html#id-u\-u, --user]8;;\
print only the effective user ID
]8;;https://www.gnu.org/software/coreutils/manual/coreutils.html#id-z\-z, --zero]8;;\
delimit entries with NUL characters, not whitespace; not
permitted in default format
]8;;https://www.gnu.org/software/coreutils/id#id--help\--help]8;;\ display this help and exit
]8;;https://www.gnu.org/software/coreutils/id#id--version\--version]8;;\
output version information and exit
Without any OPTION, print some useful set of identified
information.
Written by Arnold Robbins and David MacKenzie.
Report bugs to: bug-coreutils@gnu.org
GNU coreutils home page: <https://www.gnu.org/software/coreutils/>
General help using GNU software: <https://www.gnu.org/gethelp/>
Report any translation bugs to
<https://translationproject.org/team/>
Copyright © 2026 Free Software Foundation, Inc. License GPLv3+:
GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Full documentation <https://www.gnu.org/software/coreutils/id>
or available locally via: info '(coreutils) id invocation'
This page is part of the coreutils (basic file, shell and text
manipulation utilities) project. Information about the project
can be found at ⟨http://www.gnu.org/software/coreutils/⟩. If you
have a bug report for this manual page, see
⟨http://www.gnu.org/software/coreutils/⟩. This page was obtained
from the tarball coreutils-9.11.tar.xz fetched from
⟨http://ftp.gnu.org/gnu/coreutils/⟩ on 2026-05-24. If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for the
page, or you have corrections or improvements to the information
in this COLOPHON (which is not part of the original manual page),
send a mail to man-pages@man7.org
GNU coreutils 9.11 April 2026 ID(1)
Pages that refer to this page: newgrp(1), sg(1), strace(1), credentials(7)
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HTML rendering created 2026-05-24 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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