doc: Mention the 'ip' command.

Suggested by Alex Kost <alezost@gmail.com>.

* doc/guix.texi (Preparing for Installation): Mention 'ip'.
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Ludovic Courtès 2016-06-04 22:38:11 +02:00
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@ -6010,6 +6010,13 @@ Run the following command see what your network interfaces are called:
ifconfig -a
@end example
@noindent
@dots{} or, using the GNU/Linux-specific @command{ip} command:
@example
ip a
@end example
@c http://cgit.freedesktop.org/systemd/systemd/tree/src/udev/udev-builtin-net_id.c#n20
Wired interfaces have a name starting with @samp{e}; for example, the
interface corresponding to the first on-board Ethernet controller is