On 22/06/07, hantslug@??? <hantslug@???> wrote:
> On Friday 22 Jun 2007 11:27, James Courtier-Dutton wrote:
> > On 22/06/07, Chris. Aubrey-Smith <cas194@???> wrote:
> > > usermod -a? I wasn't aware of it; none of my reference texts mention it.
> > >
> > > Chris.
> >
> > Hehe, yes, "man usermod" is pretty obscure isn't it!
>
> "man usermod" makes no mention of "usermod -a" on my system (Sarge). -a is
> simply not listed as one of the options, neither in the sysnopsis at the
> beginning nor in the more detailed list. -G, however, is.
>
> Lisi
>
Here on Ubuntu
usermod [-c comment] [-d home_dir [-m ]] [-e expire_date]
[-f inactive_days] [-g initial_group]
[-G group1 [ ,group2,... , [groupN] [-a] ]] [-l new_login_name]
[-p password] [-s shell] [-u uid [-o ]] [-L -U] login_name
And Gentoo
SYNOPSIS
usermod [options] LOGIN
DESCRIPTION
The usermod command modifies the system account files to reflect the
changes that are specified on the command line.
OPTIONS
The options which apply to the usermod command are:
-a, --append
Add the user to the supplemental group(s). Use only with -G option.
So, you might be right, it seems that the man pages are different
across Linux distros.
I think that is a bad thing.
James
