SPUG: Get the local IP address?

Bill Campbell bill at celestial.com
Wed Jul 20 16:43:12 PDT 2005

On Wed, Jul 20, 2005, Atom Powers wrote:
>I know. I was just hoping for a simpler solution.
>Regex is so easy to get wrong...

Here's the guts of my routine parsing Linux ifconfig.  The
regular expressions are rather trivial.

    open(IFCONFIG, "/sbin/ifconfig |");
    my $key = '';
    while(<IFCONFIG>) {
        # print STDERR;
        if(/^(\S+)/) {
            $key = $1;
            $rc{$key} = {};
        $rc{$key}->{HWaddr} = $1 if(/HWaddr\s+(\S+)/);
        $rc{$key}->{ipaddr} = $1 if(/inet addr:(\S+)/);
        $rc{$key}->{bcast}  = $1 if(/Bcast:(\S+)/);
        $rc{$key}->{mask}   = $1 if(/Mask:(\S+)/);

INTERNET:   bill at Celestial.COM  Bill Campbell; Celestial Software LLC
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