PTS_CREATEGROUP(1) AFS Command Reference PTS_CREATEGROUP(1)NAMEpts_creategroup - Creates an (empty) Protection Database group entry
SYNOPSIS
pts creategroup -name <group name>+
[-owner <owner of the group>]
[-id <id (negated) for the group>+] [-cell <cell name>]
[-noauth] [-localauth] [-force] [-help]
pts createg -na <group name>+ [-o <owner of the group>]
[-i <id (negated) for the group>+] [-c <cell name>]
[-no] [-l] [-f] [-h]
pts cg -na <group name>+ [-o <owner of the group>]
[-i <id (negated) for the group>+] [-c <cell name>]
[-no] [-l] [-f] [-h]
DESCRIPTION
The pts creategroup command creates an entry in the Protection Database
for each group specified by the -name argument. The entry records the
issuer of the command as the group's creator, and as the group's owner
unless the -owner argument names an alternate user or group as the
owner.
There are two types of groups:
· regular, the names of which have two parts separated by a colon.
The part before the colon names the group's owner. Any user can
create such groups.
· prefix-less, which do not have an owner prefix. Only members of the
system:administrators group can create prefix-less groups.
Creating a group lowers the issuer's group-creation quota by one. This
is true even if the -owner argument is used to assign ownership to an
alternate user or group. To display a user's group-creation quota, use
the pts examine command; to set it, use the pts setfields command.
AFS group ID (AFS GID) numbers are negative integers and by default the
Protection Server assigns a GID that is one less (more negative) than
the current value of the "max group id" counter in the Protection
Database, decrementing the counter by one for each group. Members of
the system:administrators group can use the -id argument to assign
specific AFS GID numbers. If any of the specified GIDs is lower (more
negative) than the current value of the "max group id" counter, the
counter is reset to that value. It is acceptable to specify a GID
greater (less negative) than the current value of the counter, but the
creation operation fails if an existing group already has it. To
display or set the value of the "max group id" counter, use the pts
listmax or pts setmax command, respectively.
OUTPUT
The command generates the following string to confirm creation of each
group:
group <name> has id <AFS GID>
CAUTIONS
Although using the -owner argument to designate a machine entry as a
group's owner does not generate an error, it is not recommended. The
Protection Server does not extend the usual privileges of group
ownership to users logged onto the machine.
OPTIONS-name <group name>
Specifies the name of each group to create. Provide a string of up
to 63 characters, which can include lowercase (but not uppercase)
letters, numbers, and punctuation marks. A regular name includes a
single colon (":") to separate the two parts of the name; the colon
cannot appear in a prefix-less group name.
A regular group's name must have the following format:
<owner_name>:<group_name>
and the <owner_name> field must reflect the actual owner of the
group, as follows:
· If the optional -owner argument is not included, the field must
match the AFS username under which the issuer is currently
authenticated.
· If the -owner argument names an alternate AFS user, the field
must match that AFS username.
· If the -owner argument names another regular group, the field
must match the owning group's owner field (the part of its name
before the colon). If the -owner argument names a prefix-less
group, the field must match the owning group's complete name.
-owner <owner of the group>
Specifies a user or group as the owner for each group, rather than
the issuer of the command. Provide either an AFS username or the
name of a regular or prefix-less group. An owning group must
already have at least one member. This requirement prevents
assignment of self-ownership to a group during its creation; use
the pts chown command after issuing this command, if desired.
-id <id for the group>
Specifies a negative integer AFS GID number for each group, rather
than allowing the Protection Server to assign it. Precede the
integer with a hyphen ("-") to indicate that it is negative.
If this argument is used and the -name argument names multiple new
groups, it is best to provide an equivalent number of AFS GIDs. The
first GID is assigned to the first group, the second to the second
group, and so on. If there are fewer GIDs than groups, the
Protection Server assigns GIDs to the unmatched groups based on the
"max group id" counter. If there are more GIDs than groups, the
excess GIDs are ignored. If any of the GIDs is lower (more
negative) than the current value of the "max group id" counter, the
counter is reset to that value.
-cell <cell name>
Names the cell in which to run the command. For more details, see
pts(1).
-force
Enables the command to continue executing as far as possible when
errors or other problems occur, rather than halting execution at
the first error.
-help
Prints the online help for this command. All other valid options
are ignored.
-localauth
Constructs a server ticket using a key from the local
/usr/afs/etc/KeyFile file. Do not combine this flag with the -cell
or -noauth options. For more details, see pts(1).
-noauth
Assigns the unprivileged identity anonymous to the issuer. For more
details, see pts(1).
EXAMPLES
In the following example, the user pat creates groups called
"pat:friends" and "pat:colleagues".
% pts creategroup -name pat:friends pat:colleagues
The following example shows a member of the system:administrators group
creating the prefix-less group "staff" and assigning its ownership to
the system:administrators group rather than to herself.
% pts creategroup -name staff -owner system:administrators
In the following example, the user pat creates a group called
"smith:team-members", which is allowed because the -owner argument
specifies the required value ("smith").
% pts creategroup -name smith:team-members -owner smith
PRIVILEGE REQUIRED
The issuer must belong to the system:administrators group to create
prefix-less groups or include the -id argument.
To create a regular group, the issuer must
· Be authenticated. The command fails if the -noauth flag is
provided.
· Have a group-creation quota greater than zero. The pts examine
command displays this quota.
SEE ALSOpts(1), pts_examine(1), pts_listmax(1), pts_setfields(1), pts_setmax(1)COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
This documentation is covered by the IBM Public License Version 1.0.
It was converted from HTML to POD by software written by Chas Williams
and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
OpenAFS 2013-10-10 PTS_CREATEGROUP(1)
