Linux下获取IP、MAC、网关、掩码的shell脚本

Mask:ifconfig |grep inet| sed -n '1p'|awk '{print $4}'|awk -F ':' '{print $2}'
IP:ifconfig |grep inet| sed -n '1p'|awk '{print $2}'|awk -F ':' '{print $2}'
mac:ifconfig |grep eth0|awk '{print $5}'

cat /etc/resolv.conf | awk '{print $2}'
route -n | grep eth0 | grep UG | awk '{print $2}'