127.0.0.1

On Mon, 8 Apr 2002, Philipp Buehler wrote:

> On 05/04/2002, veins <veinsskreel.org> wrote Cc miscopenbsd.org:
> > IS_UP=`ifconfig tun0 | grep '<UP,'`;
> > if [ "${IS_UP}" != "" ]; then
> > MY_IP=`ifconfig tun0 | tail -1 | cut -d' ' -f2`;
> > echo "ip address: ${MY_IP}";
> > else
> > echo "interface is down.";
> > fi
>
> Bah.. people, know your tools.
> This one works (tested) on OpenBSD and Red Hat Linux:
> (wrote it once, where I need those checks for crossplattform scripts):
> BEGIN {num=0; FS=":[ \t]*|[ \t]+"}
> /^[a-z]/ { ifn[num] = $1 }
> /inet addr/ {ifa[num] = $4}
> /netmask/ { ifa[num-1] = $3}
> /UP/ {ifu[num]=1;num++}
> END { count=0
> while (count <= num) {
> if (ifu[count] ) print ifn[count] ":" ifa[count]
> count++
> }
> }
>
> Yes, that's awk ;) (I am pretty confident, this is [ng]awk specific).
> Just pipe ``ifconfig -a'' to it.
>
> ciao
> --
> Philipp Buehler, aka fips | sysfive.com GmbH | BOfH | NUCH | <double-p>
>
> #1: Break the clue barrier!
> #2: Already had buzzword confuseritis ?

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