The groupadd command lists a "-o" option. The manpage talks
about this mythical option too. It says:
SYNOPSIS
groupadd [-g gid [-o]] [-r] [-f] group
[SNIP]
-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
[SNIP]
-f This is force flag. This will stop groupadd exit
with 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, for that
matter).
This option also modifies the way -g option works.
When you request a gid that it is not unique and
you don't give -o option too, the group creation
will fall back to the standard behavior (adding a
Three mentions of "-o" being used, so the manpage author
obviously knows a great deal about this "-o" option. It appears
that he wanted to keep this secret information to himself though
as there is no actual explanation as to what -o does.
Someone tell me, and I'll do my part and submit a patch to the
maintainer.
Take care,
TTYL
--
Mike A. Harris Linux advocate
Computer Consultant GNU advocate
Capslock Consulting Open Source advocate
Try out Red Hat Linux today: http://www.redhat.com
ftp://ftp.redhat.com/pub/redhat/redhat-6.2/
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