Re: add an exixsting user to an existing group

[Glynn Clements <glynn@gclements.plus.com>]

Robert Wood wrote:

> > >  Is there a command to add an existing user to an existing group?This
> > > will be a supplementary group for the user.He still has his main group
> > > unchanged.I want a command instead of manually  editing the /etc/group
> > > file.
> >
> > You can set the list of supplementary groups using usermod, e.g.:
> >
> >  usermod -G group1,group2 user
> >
> > AFAIK, there isn't a standard command to add or remove specific groups
> > while leaving the rest unchanged.
> 
> How about gpasswd?
> gpasswd (1)          - administer the /etc/group file
> 
> "gpasswd -a user group" adds user to a supp group, "-d" removes.

OK, that seems about right.

For some reason, if you pick any one of the manual pages from the
shadow package, and follow enough of the "SEE ALSO" cross-references,
you'll eventually come across all of the other manual pages. Except
the one for gpasswd, which isn't referenced from any of them.

-- 
Glynn Clements <glynn@gclements.plus.com>