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Re: Default behaviour of 'ifconfig'
On Dec 3, 2010, at 4:01 50AM, Marc Balmer wrote:
> A cursory check on the Unix systems I run, including some Linux boxen,
> revealed that all of them but NetBSD have 'ifconfig', when called
> without arguments, default to the behaviour of 'ifconfig -a', which
> seems both natural and handy to me.
That's actually not quite what ifconfig does on Linux -- it only displays
active interfaces if no arguments are given. With -a, it displays all
interfaces, even those that are down. FreeBSD behaves as you describe;
it also has -u (interfaces that are up) and -d (those that are down).
> Is there a particular reason NetBSD does not do this? If the only
> reason is "lack of diff" I am more than willing to do the work.
> - Marc
--Steve Bellovin, http://www.cs.columbia.edu/~smb
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