--- On Tue, 3/22/11, Bret Lambert <bret.lamb...@gmail.com> wrote:

> From: Bret Lambert <bret.lamb...@gmail.com>
> Subject: Re: Removing secondary groups with usermod -G
> To: "William Boshuck" <bos...@math.mcgill.ca>
> Cc: misc@openbsd.org
> Date: Tuesday, March 22, 2011, 7:10 AM
> On Mon, Mar 21, 2011 at 9:45 PM,
> William Boshuck <bos...@math.mcgill.ca>
> wrote:
> > On Mon, Mar 21, 2011 at 01:18:41PM -0500, Chris
> Bennett wrote:
> >
> >> OpenBSD's form of sed requires you to output to a
> new file and
> >> mv that back to original.
> >
> > .. or one could use ed, or perl, to change a file in
> place.
> 
> What happens if ed, or perl, corrupts a system file in
> place?
> 
> >
> > -wb
> 
> 
Hmm, do backup first? 

piotr

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