svcadm(1M)을 검색하려면 섹션에서 1M 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
id(8)
System Administration Commands id(8)
NAME
id - return user identity
SYNOPSIS
/usr/bin/id [-p] [user]
/usr/bin/id -a [-p] [user]
/usr/bin/id -G [-n] [user]
/usr/bin/id -g [-nr] [user]
/usr/bin/id -u [-nr] [user]
/usr/xpg4/bin/id [-p] [user]
/usr/xpg4/bin/id -a [-p] [user]
/usr/xpg4/bin/id -G [-n] [user]
/usr/xpg4/bin/id -g [-nr] [user]
/usr/xpg4/bin/id -u [-nr] [user]
DESCRIPTION
If no user operand is provided, the id utility writes the user and
group IDs and the corresponding user and group names of the invoking
process to standard output. If the effective and real IDs do not match,
both are written. If multiple groups are supported by the underlying
system, /usr/xpg4/bin/id also writes the supplementary group affilia‐
tions of the invoking process.
If a user operand is provided and the process has the appropriate priv‐
ileges, the user and group IDs of the selected user are written. In
this case, effective IDs are assumed to be identical to real IDs. If
the selected user has more than one allowable group membership listed
in the group database, /usr/xpg4/bin/id writes them in the same manner
as the supplementary groups described in the preceding paragraph.
Formats
The following formats are used when the LC_MESSAGES locale category
specifies the "C" locale. In other locales, the strings uid, gid, euid,
egid, and groups may be replaced with more appropriate strings corre‐
sponding to the locale.
"uid=%u(%s) gid=%u(%s)\n" <real user ID>, <user-name>,
<real group ID>, <group-name>
If the effective and real user IDs do not match, the following are
inserted immediately before the \n character in the previous format:
" euid=%u(%s)"
with the following arguments added at the end of the argument list:
<effective user ID>, <effective user-name>
If the effective and real group IDs do not match, the following is
inserted directly before the \n character in the format string (and
after any addition resulting from the effective and real user IDs not
matching):
" egid=%u(%s)"
with the following arguments added at the end of the argument list:
<effectivegroup-ID>, <effectivegroupname>
If the process has supplementary group affiliations or the selected
user is allowed to belong to multiple groups, the first is added
directly before the newline character in the format string:
" groups=%u(%s)"
with the following arguments added at the end of the argument list:
<supplementary group ID>, <supplementary group name>
and the necessary number of the following added after that for any
remaining supplementary group IDs:
",%u(%s)"
and the necessary number of the following arguments added at the end of
the argument list:
<supplementary group ID>, <supplementary group name>
If any of the user ID, group ID, effective user ID, effective group ID
or supplementary/multiple group IDs cannot be mapped by the system into
printable user or group names, the corresponding (%s) and name argument
is omitted from the corresponding format string.
When any of the options are specified, the output format is as
described under OPTIONS.
OPTIONS
The following options are supported by both /usr/bin/id and
/usr/xpg4/bin/id. The -p and -a options are invalid if specified with
any of the -G, -g, or -u options.
-p Reports additionally the current project membership of the invok‐
ing process. The project is reported using the format:
"projid=%u(%s)"
which is inserted prior to the \n character of the default format
described in the Formats section. The arguments
<project ID>,<project name>
are appended to the end of the argument list. If the project ID
cannot be mapped by the system into a printable project name, the
corresponding (%s) and name argument is omitted from the corre‐
sponding format string.
-a Reports user name, user ID and all the groups to which the user
belongs.
-G Outputs all different group IDs (effective, real and supplemen‐
tary) 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 character is output.
-g Outputs only the effective group ID, using the format "%u\n".
-n Outputs the name in the format "%s" instead of the numeric ID
using the format "%u".
-r Outputs the real ID instead of the effective ID.
-u Outputs only the effective user ID, using the format "%u\n".
OPERANDS
The following operand is supported:
user The user (login) name for which information is to be written.
ENVIRONMENT VARIABLES
See environ(7) for descriptions of the following environment variables
that affect the execution of id: LANG, LC_ALL, LC_CTYPE, LC_MESSAGES,
and NLSPATH.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
>0 An error occurred.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
/usr/bin/id
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Availabilitysystem/core-os _ Interface StabilityCommit‐
ted
/usr/xpg4/bin/id
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Availabilitysystem/xopen/xcu4 _ Interface StabilityS‐
tandard
SEE ALSO
fold(1), logname(1), who(1), getgid(2), getgroups(2), getprojid(2),
getuid(2), attributes(7), environ(7), standards(7)
NOTES
Output produced by the -G option and by the default case could poten‐
tially produce very long lines on systems that support large numbers of
supplementary groups.
HISTORY
The -a flag was added to /usr/xpg4/bin/id and the -G, -g, -n, -r, and
-u options were added to /usr/bin/id in Oracle Solaris 11.0.0, using
work contributed to OpenSolaris.
The -p flag was added to /usr/bin/id and /usr/xpg4/bin/id in Solaris 9.
The /usr/xpg4/bin/id command, with the -G, -g, -n, -r, and -u options,
was added in Solaris 2.5.
The -a flag was added to /usr/bin/id in Solaris 2.0.
The /usr/bin/id command has been included in all Sun and Oracle
releases of Solaris.
Oracle Solaris 11.4 21 Jun 2021 id(8)