Guide to Unix/Commands/Self Information

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whoamiEdit

whoami tells you your current username.

Examples:

$ whoami
abicool

Links:

groupsEdit

groups states the groups the current user is a member of

Examples:

$ groups
wheel slocate www

Links:

idEdit

id gives you the same information as the whoami and groups commands, but also includes the user id (uid) and group id (gid) integers associated with the login.

Examples:

$ id
uid=3426(alice) gid=10(wheel)
groups=10(wheel),21(slocate),401(www)

Links:

  • id, opengroup.org
  • 20.1 id in GNU Coreutils manual, gnu.org

ttyEdit

tty tells you the terminal device that is assigned to your interactive login. The tty represents your console device, network connection ("ssh", ...), or terminal emulator process ("xterm", "konsole", ...).

Examples:

$ tty
/dev/pts/14

Links: