Command Reference Guide
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STANDARD Printed by: Nora Chuang [nchuang] STANDARD
/build/1111/BRICK/man1/!!!intro.1
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i
id(1) id(1)
NAME
id - print user and group IDs and names
SYNOPSIS
id [-u-g-G][-nr][-P][user]
DESCRIPTION
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 real IDs.
Options
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> is output.
-n With A -u, -g,or-G, display the ID name instead of the ID number.
-r With -u, -g,or-G, displaythe real ID instead of the effective ID.
-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.
EXAMPLES
To display the current user and group data:
id
produces:
uid=1834(allanp) gid=20(users)
To display the group ID number for the current process:
id -g
produces:
20
To display the group name for the current process:
id -gn
produces:
users
To display the user and group data for another user:
id ralford
produces:
uid=329(ralford) gid=20(users)
if the effective user ID of the process is superuser. Otherwise, it produces the data for the invoking pro-
cess.
HP-UX Release 11i: December 2000 − 1 − Section 1−−349
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