---
name: "id"
section: "1"
platform: "linux"
package: "coreutils"
version: "9.12-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux", "freebsd", "openbsd", "macos"]
url: "https://new.carta.tech/id"
---

# id(1)

print real and effective user and group IDs

## NAME

id - print real and effective user and group IDs

## SYNOPSIS

**id** \[*OPTION*\]... \[*USER*\]...

## DESCRIPTION

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

- **-a**

  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 **-u**, **-g**, **-G**

- **-r, --real**

  print the real ID instead of the effective ID, with **-u**, **-g**, **-G**

- **-u, --user**

  print only the effective user ID

- **-z, --zero**

  delimit entries with NUL characters, not whitespace; not permitted in default format

- **--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.

## REPORTING BUGS

Report bugs to: \<bug-coreutils@gnu.org\>.\
 Report any translation bugs to: \<https://translationproject.org/team/\>.\
 GNU coreutils home page: \<https://www.gnu.org/software/coreutils/\>\
 General help using GNU software: \<https://www.gnu.org/gethelp/\>

## COPYRIGHT

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.

## SEE ALSO

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