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RedHat 9 (Linux i386) - man page for groupadd (redhat section 8)

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GROUPADD(8)									      GROUPADD(8)

       groupadd - Create a new group

       groupadd [-g gid [-o]] [-r] [-f] group

       The groupadd command creates a new group account using the values specified on the command
       line and the default values from the system.  The new group will be entered into the  sys-
       tem files as needed.  The options which apply to the groupadd command are

       -g gid The  numerical  value  of the group's ID.  This value must be unique, unless the -o
	      option is used.  The value must be non-negative.	The default is to use the  small-
	      est ID value greater than 500 and greater than every other group.  Values between 0
	      and 499 are typically reserved for system accounts.

       -r     This flag instructs groupadd to add a system  account.   The  first  available  gid
	      lower than 499 will be automatically selected unless the -g option is also given on
	      the command line.
	      This is an option added by Red Hat.

       -f     This is the force flag. This will cause groupadd to exit with  an  error	when  the
	      group  about  to	be  added  already exists on the system. If that is the case, the
	      group won't be altered (or added again).
	      This option also modifies the way -g option works. When you request a gid  that  it
	      is not unique and you don't specify the -o option too, the group creation will fall
	      back to the standard behavior (adding a group as if neither -g or -o  options  were
	      This is an option added by Red Hat.

       /etc/group - group account information
       /etc/gshadow - secure group account information

       chfn(1), chsh(1), passwd(1), groupdel(8), groupmod(8), useradd(8), userdel(8), usermod(8)

       Julianne Frances Haugh (jockgrrl@ix.netcom.com)

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