[Gllug] hostname on CentOS

[Tethys]

Nix writes:

>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...

Using -r still wouldn't remove the need to append /dev/null, though...

Tet
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