[Gllug] hostname on CentOS

[Nix]

On Fri, 11 Nov 2005, Tethys whispered secretively:
> Even when using xargs, you should still append /dev/null to the end of
> the grep.

I've always used xargs -r, but I tend to have that mentally hardwired
as -print0 | xargs -0r, so I forget the -r when I'm giving examples
that can't use -0...

-- 
`Heinlein is quite competent at putting together sentences, but usually
he also puts together a plot to go with them.' --- Russ Allbery
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