RHEL7主機有四塊網(wǎng)卡弥虐，名為eth0/eth1/eth2/eth3。為四塊網(wǎng)卡配置IP地址媚赖。
#!/usr/bin/env python
import sys
import re
def configip(fname, ip_addr, if_ind):
content = """TYPE=Ethernet
BOOTPROTO=none
NAME=eth%s
DEVICE=eth%s
ONBOOT=yes
IPADDR=%s
PREFIX=24
""" % (if_ind, if_ind, ip_addr)
with open(fname, 'w') as fobj:
fobj.write(content)
def check_ip(ip_addr): # 判斷IP地址是不是X.X.X.X格式
m = re.match(r'(\d{1,3}\.){3}\d{1,3}$', ip_addr)
if not m:
return False
return True
def show_menu():
prompt = """Configure IP Address:
(0) eth0
(1) eth1
(2) eth2
(3) eth3
Your choice(0/1/2/3): """
try:
if_ind = raw_input(prompt).strip()[0]
except:
print 'Invalid input.'
sys.exit(1)
if if_ind not in '0123':
print 'Wrong Selection. Use 0/1/2/3'
sys.exit(2)
fname = '/etc/sysconfig/network-scripts/ifcfg-eth%s' % if_ind
ip_addr = raw_input('ip address: ').strip()
result = check_ip(ip_addr)
if not result:
print 'Invalid ip address'
sys.exit(3)
configip(fname, ip_addr, if_ind)
print '\033[32;1mConfigure ip address done. Please execute "systemctl restart NetworkManager"\033[0m'
if __name__ == '__main__':
show_menu()
