bsdinterface.py

#!/usr/bin/python2.5

#
# Grab BSD interface names for the first Airport and Ethernet interfaces on your computer.
#
import subprocess

ethTest = "networksetup -listnetworkserviceorder | awk -F': ' '/Ethernet,/ || /Ethernet .,/ {gsub(/\)/,\"\");print $3}'"
apTest = "networksetup -listnetworkserviceorder | awk -F': ' '/AirPort,/ {gsub(/\)/,\"\");print $3}'"
newdict = {}


command = subprocess.Popen(ethTest, shell=True, stdout=subprocess.PIPE,)
ethlist = command.communicate()[0]
newdict['Ethernet'] = ethlist.rstrip().split("\n")[0]

command = subprocess.Popen(apTest, shell=True, stdout=subprocess.PIPE,)
aplist = command.communicate()[0]
newdict['AirPort'] = aplist.rstrip().split("\n")[0]

print 'Ethernet interface is: ' + newdict['Ethernet']
print 'AirPort interface is: ' + newdict['AirPort']