id - print user and group IDs and names
id [-u|-g|-G] [-nr] [-P] [user]
The id command writes a message to standard output, giving the user
and group IDs and names for the process. If the effective and real
IDs are different, both are printed.
If the process has supplementary group affiliations (see groups(1)),
the supplementary group affiliations are also written.
If the user operand is specified, and the effective user ID of the
process is superuser, the user and group IDs of the selected user are
written. In this case, effective IDs are assumed to be identical to
The following options modify the behavior described above.
-g Display only the group ID. The default is the effective
group ID; to modify, use the -r option. If the process has
supplementary group affiliations that are different from the
effective group ID (or the real ID if the -r option is
used), display each such affiliation on the same line. The
default is decimal format; to modify, use the -n option.
-G Output all different group IDs (effective, real, and
supplementary) only, using the format "%u\n". If there is
more than one distinct group affiliation, output each such
affiliation, using the format " %u", before the <newline>
-n With A -u, -g, or -G, display the ID name instead of the ID
-r With -u, -g, or -G, display the real ID instead of the
-u Display only the user ID. The default is the effective user
ID; to modify, use the -r option. The default is decimal
format; to modify, use the -n option.
-P Display the process resource group ID. See HP Process
Resource Manager in DEPENDENCIES.
To display the current user and group data:
Hewlett-Packard Company - 1 - HP-UX Release 11i: November 2000
To display the group ID number for the current process:
To display the group name for the current process:
To display the user and group data for another user:
if the effective user ID of the process is superuser. Otherwise, it
produces the data for the invoking process.
id was developed by HP and AT&T.
HP Process Resource Manager
The -P option requires that the optional HP Process Resource Manager
(PRM) software be installed and configured. See prmconfig(1) for a
description of how to configure HP PRM, and prmconf(4) for the
definition of the process resource group.
groups(1), logname(1), getuid(2).
HP Process Resource Manager: prmconfig(1), prmconf(4) in HP Process
Resource Manager User's Guide.
id: SVID2, SVID3, XPG2, XPG3, XPG4, POSIX.2
Hewlett-Packard Company - 2 - HP-UX Release 11i: November 2000