Debian method export CURRENT_IP=`/sbin/ifconfig | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}'` Archlinux method export CURRENT_IP=`/sbin/ifconfig | grep 'inet '| grep -v '127.0.0.1' | cut -d' ' -f10 | awk '{ print $1}'`