Shell脚本批量添加IP方法

#!/bin/bash
#网络文件
networkfile="/etc/sysconfig/network-scripts/ifcfg-eth0"
#虚拟网卡数
virtul_eth=3
baseaddress="192.168.0"
#从237开始扫描IP地址
baseip="237"
while [ 1 ]
do
    if [ baseip -gt 254 ];then
        break
    fi
    ping -c2 {baseaddress}.{baseip}
    if [ "x?" != "x0" ]
    then
        echo "Congratuations!IP:[{baseaddress}.{baseip}] not be used yet!" >> iplist.txt
#找以同人占用IP就添加到虚拟网卡，做为自己的独立IP
        cp {networkfile} {networkfile}:{virtul_eth}
        grep -E -v "DEVICE|IPADDR" {networkfile}:{virtul_eth} > 1.txt
        echo "DEVICE=eth0:virtul_eth" >>1.txt
        echo "IPADDR={baseaddress}.{baseip}" >> 1.txt
        mv -f 1.txt {networkfile}:{virtul_eth}
    else
        echo "Bad IP:[{baseaddress}.{baseip}]"
    fi
    baseip=(expr {baseip} + 1)
    virtul_eth=(expr {virtul_eth} + 1)
done