shell语句获取子网掩码

diyself

获得IP：
ifconfig | sed -ne 's/ *inet addr:\([0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\) *B.*/Your IP is:\1/p'



为什么我改改了，却获得不了Netmask？如下：
ifconfig | sed -ne 's/ *Mask:\([0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\) */Mac is:\1/p'

谢谢

biinn

/sbin/ifconfig eth0 | grep Mask | cut -d: -f4

diyself

thanks

coolend

# ifconfig eth0|grep "inet addr:"|awk '{print $2,$4}'|sed 's/[A-Za-z]*://g'
192.168.0.12 255.255.255.0

# ifconfig eth0|grep "inet addr:"|awk '{print $2,$4}'|sed 's/[A-Za-z]*://g'|\
    awk '{print "Your IP is ["$1"], Your Netmask is ["$2"]"}'
Your IP is [192.168.3.1], Your Netmask is [255.255.255.0]