bash 스크립트에서 네트워크 정보 확인하기

MAC Address
$ /sbin/ifconfig eth0 | grep HWaddr | awk '{print $5}'

IP Address
$ /sbin/ifconfig eth0 | grep 'inet addr' | awk '{print $2}'

Broadcast Address
$ /sbin/ifconfig eth0 | grep 'inet addr' | awk '{print $3}'

SUBNET mask
$ /sbin/ifconfig eth0 | grep 'inet addr' | awk '{print $4}'

GATEWAY Address
$ netstat -rn | grep ^0.0.0.0 | awk '{printf $2}'