# phpman > man > id(1)

> **TLDR:** Display current user and group identity.
>
- Display current user's ID (UID), group ID (GID), and groups to which they belong:
  `id`
- Display the current user identity:
  `id {{-un|--user --name}}`
- Display the current user identity as a number:
  `id {{-u|--user}}`
- Display the current primary group identity:
  `id {{-gn|--group --name}}`
- Display the current primary group identity as a number:
  `id {{-g|--group}}`
- Display all groups the current user belongs to:
  `id {{-Gn|--groups --name}}`
- Display an arbitrary user's ID (UID), group ID (GID), and groups to which they belong:
  `id {{username}}`
- Skip name lookup and specify the UID number explicitly:
  `id +{{uid_number}}`

*Source: tldr-pages*

---

[ID(1)](https://www.chedong.com/phpMan.php/man/ID/1/markdown)                                       User Commands                                      [ID(1)](https://www.chedong.com/phpMan.php/man/ID/1/markdown)



## 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 cur‐
       rent user.

### -a

### -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

       **--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
       GNU coreutils online help: <<https://www.gnu.org/software/coreutils/>>
       Report any translation bugs to <<https://translationproject.org/team/>>

## COPYRIGHT
       Copyright © 2020 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'



GNU coreutils 8.32                          January 2026                                       [ID(1)](https://www.chedong.com/phpMan.php/man/ID/1/markdown)