Harm Geerts posted <200511022259.51970.harmgeerts@...>, excerpted
below, on Wed, 02 Nov 2005 22:59:51 +0100:
> On Wednesday 02 November 2005 21:54, Duncan wrote:
>> Hmm... That --noreplace is a new one on me. I normally simply
>> echo <category/pkg> >> /var/lib/portage/world
>> Newer versions of portage (don't believe it's in stable portage yet) even
>> have an emaint command that removes the bad lines for you.
> So did I, but now the warning `emerge depclean` produces tells me I can use
> this. I find this rather nice as it is a lot safer and keeps the world file
> free from user errors. For example replacing >> with > would be the most
> destructive user error :P
> I have portage 2.0.53_rc7 installed and I'm not sure which version introduced
> --noreplace so it might not be available for everyone yet.
I'm still on rc6, so I guess I need to sync and emerge -uD world.
However, it's probably in rc6 too, only I didn't notice it in the warning
(<sheepish> as I don't read it as I know what the warning is about... only
they added something! </sheepish>).
Not here, forgetting the second > in >> wouldn't be destructive! I think
this hint was featured in GWN a while back (yes, it was, comments are good
-- snip --
# Based on a tips & tricks GWN feature.
# Makes redirection to an existing file an error.
# Use >> instead of > to append, or >| if overwriting is desired.
set -o noclobber
-- snip --
Put that in your .bashrc or whatever (my /etc/profile and .bashrc and all
that are rather seriously customized, here, it's a file called
noclobber.sh in /etc/profile.d/, but my bashrcs and profiles source
everything in /etc/profile.d/ so it's added to them).
That way, using > to redirect to an existing file produces an error saying
it already exists. The comment gives the solution, use >> to append, or
use >| to force-overwrite the file.
So... "echo whatever > /var/lib/portage/world" would NOT "be the end of my
world" here! (double entendre/entente)
Duncan - List replies preferred. No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master." Richard Stallman in
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