id(1m) - osol9

1id(1M)                  System Administration Commands                  id(1M)
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NAME

6       id - return user identity
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SYNOPSIS

9       /usr/bin/id [-p] [user]
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12       /usr/bin/id -a [-p] [user]
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15       /usr/bin/id -G [-n] [user]
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18       /usr/bin/id -g [-nr] [user]
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21       /usr/bin/id -u [-nr] [user]
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24       /usr/xpg4/bin/id [-p] [user]
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27       /usr/xpg4/bin/id -a [-p] [user]
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30       /usr/xpg4/bin/id -G [-n] [user]
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33       /usr/xpg4/bin/id -g [-nr] [user]
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36       /usr/xpg4/bin/id -u [-nr] [user]
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DESCRIPTION

40       If  no  user  operand  is  provided, the id utility writes the user and
41       group IDs and the corresponding user and group names  of  the  invoking
42       process to standard output. If the effective and real IDs do not match,
43       both are written. If multiple groups are supported  by  the  underlying
44       system,  /usr/xpg4/bin/id  also writes the supplementary group affilia‐
45       tions of the invoking process.
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48       If a user operand is provided and the process has the appropriate priv‐
49       ileges,  the  user  and  group IDs of the selected user are written. In
50       this case, effective IDs are assumed to be identical to  real  IDs.  If
51       the  selected  user has more than one allowable group membership listed
52       in the group database, /usr/xpg4/bin/id writes them in the same  manner
53       as the supplementary groups described in the preceding paragraph.
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55   Formats
56       The  following  formats  are  used when the LC_MESSAGES locale category
57       specifies the "C" locale. In other locales, the strings uid, gid, euid,
58       egid,  and  groups may be replaced with more appropriate strings corre‐
59       sponding to the locale.
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61         "uid=%u(%s) gid=%u(%s)\n" <real user ID>, <user-name>,
62             <real group ID>, <group-name>
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67       If the effective and real user IDs do  not  match,  the  following  are
68       inserted immediately before the \n character in the previous format:
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70         " euid=%u(%s)"
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75       with the following arguments added at the end of the argument list:
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77         <effective user ID>, <effective user-name>
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82       If  the  effective  and  real  group IDs do not match, the following is
83       inserted directly before the \n character in  the  format  string  (and
84       after  any  addition resulting from the effective and real user IDs not
85       matching):
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87         " egid=%u(%s)"
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92       with the following arguments added at the end of the argument list:
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94         <effectivegroup-ID>, <effectivegroupname>
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99       If the process has supplementary group  affiliations  or  the  selected
100       user  is  allowed  to  belong  to  multiple  groups, the first is added
101       directly before the NEWLINE character in the format string:
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103         " groups=%u(%s)"
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108       with the following arguments added at the end of the argument list:
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110         <supplementary group ID>, <supplementary group name>
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115       and the necessary number of the following  added  after  that  for  any
116       remaining supplementary group IDs:
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118         ",%u(%s)"
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123       and the necessary number of the following arguments added at the end of
124       the argument list:
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126         <supplementary group ID>, <supplementary group name>
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131       If any of the user ID, group ID, effective user ID, effective group  ID
132       or supplementary/multiple group IDs cannot be mapped by the system into
133       printable user or group names, the corresponding (%s) and name argument
134       is omitted from the corresponding format string.
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136
137       When  any  of  the  options  are  specified,  the  output  format is as
138       described under OPTIONS.
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OPTIONS

141       The  following  options  are  supported   by   both   /usr/bin/id   and
142       /usr/xpg4/bin/id.  The  -p and -a options are invalid if specified with
143       any of the -G, -g, or -u options.
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145       -p    Reports additionally the current project membership of the invok‐
146             ing process. The project is reported using the            format:
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148               "projid=%u(%s)"
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151             which  is inserted prior to the 0fR character of the default for‐
152             mat described in the Formats section. The arguments
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154               <project ID>,<project name>
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157             are appended to the end of the argument list.  If the project  ID
158             cannot be mapped by the system into a printable project name, the
159             corresponding (%s) and name argument is omitted from  the  corre‐
160             sponding format string.
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162
163       -a    Reports  user name, user  ID and all the groups to which the user
164             belongs.
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167       -G    Outputs all different group IDs (effective, real  and  supplemen‐
168             tary)  only,  using  the format "%u\n". If there is more than one
169             distinct group affiliation, output each such  affiliation,  using
170             the format " %u", before the NEWLINE character is output.
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173       -g    Outputs only the effective group ID, using the format "%u\n".
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176       -n    Outputs  the  name  in  the format "%s" instead of the numeric ID
177             using the format "%u".
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180       -r    Outputs the real ID instead of the effective ID.
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183       -u    Outputs only the effective user ID, using the format "%u\n".
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OPERANDS

187       The following operand is supported:
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189       user    The user (login) name for which information is to be written.
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ENVIRONMENT VARIABLES

193       See environ(5) for descriptions of the following environment  variables
194       that  affect  the execution of id: LANG, LC_ALL, LC_CTYPE, LC_MESSAGES,
195       and NLSPATH.
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EXIT STATUS

198       The following exit values are returned:
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200       0     Successful completion.
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202
203       >0    An error occurred.
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ATTRIBUTES

207       See attributes(5) for descriptions of the following attributes:
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209   /usr/bin/id
210       ┌─────────────────────────────┬─────────────────────────────┐
211       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
212       ├─────────────────────────────┼─────────────────────────────┤
213       │Availability                 │SUNWcsu, SUNWcar             │
214       ├─────────────────────────────┼─────────────────────────────┤
215       │Interface Stability          │Stable                       │
216       └─────────────────────────────┴─────────────────────────────┘
217
218   /usr/xpg4/bin/id
219       ┌─────────────────────────────┬─────────────────────────────┐
220       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
221       ├─────────────────────────────┼─────────────────────────────┤
222       │Availability                 │SUNWxcu4                     │
223       ├─────────────────────────────┼─────────────────────────────┤
224       │Interface Stability          │Standard                     │
225       └─────────────────────────────┴─────────────────────────────┘
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NOTES

232       Output  produced  by the -G option and by the default case could poten‐
233       tially produce very long lines on systems that support large numbers of
234       supplementary groups.
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238SunOS 5.11                        28 Nov 2006                           id(1M)