Monitor linux traffic for python and linux traffic for python

Monitor linux traffic for python and linux traffic for python

Monitor linux traffic in python

Directly upload the code and use OptionParser to input parameters.

#coding:utf-8#-------------#Author:Hu#Data:20150520#-------------from __future__ import divisionimport reimport timefrom optparse import OptionParserdef getbandwidth(eth='eth0',intevel=1):    a=open('/proc/net/dev')    data=a.read()    patten=eth + '.*'    if  not re.search(patten,data):        print "The ETHname not have"        exit(1)    Rev_old=re.search(patten,data).group().replace(':',' ').split()[1]    Send_old=re.search(patten,data).group().replace(':',' ').split()[9]    a.close()    while True:        #print intevel        time.sleep(int(intevel))        a=open('/proc/net/dev')        data=a.read()        Rev=re.search(patten,data).group().replace(':',' ').split()[1]        Send=re.search(patten,data).group().replace(':',' ').split()[9]        diff_Rev=int(Rev)-int(Rev_old)        diff_Sen=int(Send)-int(Send_old)        diff_M=diff_Rev*8/1024/1024/int(intevel)        diff_S=diff_Sen*8/1024/1024/int(intevel)        print time.strftime("%Y%m%d %H:%M:%S") + '   The Recevie is  %6.2f Mbps(byte is %d)' % (diff_M,diff_Rev) + '   The Send is  %6.2f Mbps(byte is %d)' % (diff_S,diff_Sen)        Rev_old=Rev        Send_old=Send        a.close()if __name__=='__main__':        import sys    usage='''%prog [-i ethname] [-t interveltime]           Example:%prog -i eth0 -t 1'''    parser=OptionParser(usage=usage,version='2.0_20150602')    parser.add_option('-i','--interface',dest='interface',default='eth0',help='Wann to interface')    parser.add_option('-t','--time',dest='intevel',type='int',default='1',help='The intevel time')    (options,args)=parser.parse_args()    print "The interafce is %s and the intevel time is %d" % (options.interface,options.intevel)    getbandwidth(options.interface,options.intevel)

Usage:

''' % Prog [-I ethname] [-t interveltime] Example: % prog-I eth0-t 1 '''
The default value is eth0 and the interval is 1.


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