id
ID(1)                                 FSF                                ID(1)
NAME
       id - print real and effective UIDs and GIDs
SYNOPSIS
       id [OPTION]... [USERNAME]
DESCRIPTION
       Print information for USERNAME, or the current user.
       -a     ignore, for compatibility with other versions
       -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.
REPORTING BUGS
       Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is
       NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A  PARTICULAR
       PURPOSE.
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  com-
       mand
              info id
       should give you access to the complete manual.
id (coreutils) 4.5.3             October 2003                            ID(1)