CentOS assigns IP script--The first shell script written

IDC small rookie one, non-trained. There are often customers with CentOS servers that need to allocate 15 IPs or even 30 IPs. Each time a manual assignment was cumbersome, it took a day to learn the shell script and write the script.

#!/bin/bash

Read-p "The IP numbers:" num

while [[$num-GT 0]]

Do

Read-p "Please enter IP address:" IPAddr

Touch/etc/sysconfig/network-scripts/ifcfg-eth0: $num

Ncf=/etc/sysconfig/network-scripts/ifcfg-eth0: $num

echo Device=eth0: $num > $NCF

echo type=ethernet >> $NCF

echo bootproto=static >> $NCF

echo ipaddr= $ipaddr >> $NCF

echo netmask=255.255.255.192 >> $NCF

echo Onboot=yes >> $NCF

num= ' expr $num-1 '

Done

Service Network restart

As the company's mask is 255.255.255.192 so direct use, as long as the input needs to allocate the number of IP and IP address.

After writing this script will come in handy immediately, but still think the manual input IP is too troublesome, next time to write a direct from another file to extract the IP address of the script bar.

Write the first script yourself. Full of accomplishment < () >

CentOS assigns IP script--The first shell script written