Detect 10G and 1G odd or even interface names under FreeBSD

10g-1g-detect.sh

#!/bin/sh
connected_interfaces=`ifconfig -a | awk '{FS=":";interfaces="";if (substr($1,length($1),1)%2 == 0) {
iface=$1;
if (iface ~ /^[a-z]+[0-9]/) {
    getmedia="ifconfig " iface
    while ((getmedia |getline) > 0)
        if ($1 ~ /media/) {
        media=$2
        connected_1g = match(media, /.*\(1000.*\).*/)
        connected_10g = match(media, /.*\(10.*\).*/)
        if (connected_1g != 0){
                interfaces=interfaces "1G="iface"\n"
        } else if (connected_10g != 0) {
                interfaces=interfaces "10G="iface"\n"
        }
    }
    close(getmedia)
}
}

printf interfaces
}'`

sorted_interfaces=`echo $connected_interfaces|tr ' ' '\n'|sort -nr|cut -f2 -d"="`
int10G=`echo $sorted_interfaces|awk '{print $1}'`
int1G=`echo $sorted_interfaces|awk '{print $2}'`

echo $int10G
echo $int1G