Python IP切换

3r2e3123

    最近在笔记本重新安装了虚拟机，由于在家在公司经常需要切换IP，修改IP配置文件，觉得挺繁琐的，所以就索性的写了一个自动切换IP的脚本，主要是读配置文件修改，详情如下：1、创建配置文件：

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# cat ip.conf [home] ip = 192.168.7.150 gateway = 192.168.7.1 [work] ip = 10.7.93.150 gateway = 10.7.93.1

2、脚本实例

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#!/usr/bin/env  python # conding = utf-8 # finame swtch_ip.py # This is swtch ip python file import socket,os,sys import ConfigParser import time from optparse import OptionParser def init():     global IPS     global GATEWAYS     config = ConfigParser.ConfigParser()     dir = os.path.dirname(os.path.abspath(__file__))     conf = dir + "/conf"     filepath = "%s/ip.conf" %(conf)     if not os.path.exists(filepath):         raise "ERROR: ip.conf is not it!"     config.read(filepath)     IPS = config.get(options.type,"ip")     GATEWAYS = config.get(options.type,"gateway")     print "======[%s] Start get new options,please wait... ======" %(options.type)     print "%s config file ip is %s,gateway is %s" %(options.type,IPS,GATEWAYS) def getopts():     MSG_USAGE='''python %s -t home''' % sys.argv[0]     optParser=OptionParser(MSG_USAGE)     optParser.add_option('-t',action='store',type='string',dest='type',default='work',help=u'type:work,home')     (options,args)=optParser.parse_args()     return options def ipconfig():     ipconfigfile = open('/etc/sysconfig/network-scripts/ifcfg-eth0','r')     while True:         ipconfiglines = ipconfigfile.readlines()         if not ipconfiglines:         break         #ipconfigfile.close()     if "IPADDR" in ipconfiglines[4] and "GATEWAY" in ipconfiglines[3]:         print "====== Change IP and GATEWAY, please wait... ======"             temp = ipconfiglines[4].split('\"')             a = temp[1]             temp1 = ipconfiglines[3].split('\"')             b = temp1[1]             print "ifcfg-et0 config old IP is %s and old GATEWAY is %s" %(a,b)             edit_file = os.system('sed -i "s/'+a+'/'+IPS+'/g;s/'+b+'/'+GATEWAYS+'/g" /etc/sysconfig/network-scripts/ifcfg-eth0')             if edit_file == 0:                 print 'Edit ifcfg-eth0 ip and gateway is OK,restart network restart'                 restart_network = os.system('/etc/init.d/network restart')         if restart_network == 0:             print "Network restart Succ!"                 else:                 print "Network restart Fail!"         else:                 print 'Edit ifcfg-eth0 ip is ERROR'     else:         print "no IP address and GATEWAY!!!" if __name__ == '__main__':     if len(sys.argv)<1 and sys.argv[1] != '-h' and sys.argv[1] != '--help':         print '''Usage:  python %s -t work         python %s -h|--help''' % (sys.argv[0],sys.argv[0])         sys.exit(1)     options = getopts()     init()     ipconfig()

3、查看帮助

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# python swich_ip.py --help Usage: python swich_ip.py -t home Options:   -h, --help  show this help message and exit   -t TYPE     type:work,home

4、运行测试

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# python swich_ip.py -t home ======[home] Start get new options,please wait... ====== home config file ip is 192.168.7.250,gateway is 192.168.7.1 ====== Change IP and GATEWAY, please wait... ====== ifcfg-et0 config old IP is 192.168.7.250 and old GATEWAY is 192.168.7.1 Edit ifcfg-eth0 ip and gateway is OK,restart network restart 正在关闭接口 eth0：                                        [确定] 关闭环回接口：                                             [确定] 弹出环回接口：                                             [确定] 弹出界面 eth0：                                            [确定] Network restart Succ!

5、结果

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# cat  /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE="eth0" ONBOOT="yes" BOOTPROTO="static" GATEWAY="192.168.7.1" IPADDR="192.168.7.250"