id - print real and effective user and group IDs


   id [OPTION]... [USER]


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

   -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 -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

          output version information and exit

   Without any OPTION, print some useful set of identified information.


   Written by Arnold Robbins and David MacKenzie.


   GNU coreutils online help: <>
   Report id translation bugs to <>


   Copyright  2016 Free Software Foundation, Inc.   License  GPLv3+:  GNU
   GPL version 3 or later <>.
   This  is  free  software:  you  are free to change and redistribute it.
   There is NO WARRANTY, to the extent permitted by law.


   Full documentation at: <>
   or available locally via: info '(coreutils) id invocation'

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