网卡流量监控脚本，python实现

使用-h获取帮助

在Python2.7版本以上执行

脚本获取：https://github.com/raysuen/AdapterMonitor

内容:

#!/usr/bin/env python# _*_coding:utf-8_*_# Auth by raysuenimport sys,timeimport reAdapterInfoDict={    "InterFace":"all",    "Interval":1,    "NumberOfDis":None,    "Action":"all",    "ShowSize":"b"             }def GetAdapterInfo():    faces=[]    # f=open(r"C:\Users\Administrator\Downloads\dev","rb")    f = open(r"/proc/net/dev", "rb")    for line in f:  #循环获取文件信息        if line.decode(encoding="utf8").find(":") != -1:        #判断是否为网卡列            if AdapterInfoDict["InterFace"] == "all":           #判断获取网卡的名称，all为全部网卡                if AdapterInfoDict["ShowSize"] == "b":          #判断显示的大小，默认为bytes                    #生成一维数组记录，网卡信息：网卡名称，进流量，出流量                    face=[line.decode(encoding="utf8").split(":")[0].strip(),int(line.decode(encoding="utf8").split()[1]),int(line.decode(encoding="utf8").split()[9])]                elif AdapterInfoDict["ShowSize"] == "k":                    face=[line.decode(encoding="utf8").split(":")[0].strip(),round(int(line.decode(encoding="utf8").split()[1])/1024),round(int(line.decode(encoding="utf8").split()[9])/1024)]                elif AdapterInfoDict["ShowSize"] == "m":                    face=[line.decode(encoding="utf8").split(":")[0].strip(),round(int(line.decode(encoding="utf8").split()[1])/1024/1024),round(int(line.decode(encoding="utf8").split()[9])/1024/1024)]                else:                    print("The value of -s is invalid,you can use -h to get help.")                    exit(69)                faces.append(face)         #把每个网卡信息的一维数组存入二维数组            else:                for facename in AdapterInfoDict["InterFace"].split(","):   #判断网卡名称，可以为多个网卡，多个网卡用逗号分隔                    if line.decode(encoding="utf8").split(":")[0].strip() == facename:                        if AdapterInfoDict["ShowSize"] == "b":                            face = [line.decode(encoding="utf8").split(":")[0].strip(),                                    int(line.decode(encoding="utf8").split()[1]),                                    int(line.decode(encoding="utf8").split()[9])]                        elif AdapterInfoDict["ShowSize"] == "k":                            face = [line.decode(encoding="utf8").split(":")[0].strip(),                                    round(int(line.decode(encoding="utf8").split()[1]) / 1024),                                    round(int(line.decode(encoding="utf8").split()[9]) / 1024)]                        elif AdapterInfoDict["ShowSize"] == "m":                            face = [line.decode(encoding="utf8").split(":")[0].strip(),                                    round(int(line.decode(encoding="utf8").split()[1]) / 1024 / 1024),                                    round(int(line.decode(encoding="utf8").split()[9]) / 1024 / 1024)]                        else:                            print("The value of -s is invalid,you can use -h to get help.")                            exit(69)                        faces.append(face)    return facesdef help_func():    print("""    NAME:        AdapterMonitor  --Display net interface netflow    SYNOPSIS:        AdapterMoniter [-f] [interface names] [-i] [interval time] [-n] [display number] [-a] [action] [-s] [show size]    DESCRIPTION:        -f  specify interface names.values is interface names or all,default all.            You can specify a name,also some names.            If the names is more one,you can use comma as separator.            Example:                AdapterMoniter.py -f eth0                AdapterMoniter.py -f eth0,eth2        -i  specify a interval time to display,defaul 1 second.            Unit: second        -n  to display how many times you want.Default: None,means unlimited number.            Example:                AdapterMoniter.py -n 2        -a  to display what action you want,IN/OUT/ALL.Defaul: all.            Example:                AdapterMoniter.py -a in        -s  to display the netflow size.Default: b(bytes)            values: b(bytes)/k(KB)/m(MB)            Example:                AdapterMoniter.py -s k                    EXAMPLE:        AdapterMoniter.py -f eth0 -i 2 -n 10 -a in -s k    """)if __name__ == "__main__":    num=1            #计数器，记录当前参数下标    exitnum=0        #退出时的退出数    #获取参数    if len(sys.argv) > 1:  #判断是否有参数输入        while num < len(sys.argv):            if sys.argv[num] == "-h":                help_func()     #执行帮助函数                exitnum = 0                exit(exitnum)            elif sys.argv[num] == "-f":                num += 1               #下标向右移动一位                if num >= len(sys.argv):    #判断是否存在当前下标的参数                    exitnum = 99                    print("The parameter must be specified a value,-f.")                    exit(exitnum)                elif re.match("^-",sys.argv[num]) == None:       #判断当前参数是否为-开头，None为非-开头                    AdapterInfoDict["InterFace"]=sys.argv[num]                    num += 1                else:                    print("Please specify a valid value for -f.")                    exitnum = 98                    exit(exitnum)            elif sys.argv[num] == "-i":                num += 1                if num >= len(sys.argv):                    exitnum = 97                    print("The parameter must be specified a value,-i.")                    exit(exitnum)                elif re.match("^-",sys.argv[num]) == None:                    if sys.argv[num].isdigit() == True:   #判断是否为正整数                        AdapterInfoDict["Interval"]=sys.argv[num]                        num += 1                    else:                        print("The value of -i must be digit.")                        exitnum = 96                        exit(exitnum)                else:                    print("Please specify a valid value for -i.")                    exitnum = 95                    exit(exitnum)            elif sys.argv[num] == "-n":                num += 1                if num >= len(sys.argv):                    exitnum = 94                    print("The parameter must be specified a value,-n.")                    exit(exitnum)                elif re.match("^-",sys.argv[num]) == None:                    if sys.argv[num].isdigit() == True:                        AdapterInfoDict["NumberOfDis"]=sys.argv[num]                        num += 1                    else:                        print("The value of -n must be digit.")                        exitnum = 93                        exit(exitnum)                else:                    print("Please specify a valid value for -n.")                    exitnum = 92                    exit(exitnum)            elif sys.argv[num] == "-a":                num += 1                if num >= len(sys.argv):                    exitnum = 91                    print("The parameter must be specified a value,-a.")                    exit(exitnum)                elif re.match("^-",sys.argv[num]) == None:                    AdapterInfoDict["Action"]=sys.argv[num]                    num += 1                else:                    print("Please specify a valid value for -a.")                    exitnum = 90                    exit(exitnum)            elif sys.argv[num] == "-s":                num += 1                if num >= len(sys.argv):                    exitnum = 89                    print("The parameter must be specified a value,-s.")                    exit(exitnum)                elif re.match("^-",sys.argv[num]) == None:                    AdapterInfoDict["ShowSize"]=sys.argv[num]                    num += 1                else:                    print("Please specify a valid value for -s.")                    exitnum = 90                    exit(exitnum)    #获取开始的网卡信息    facesPre = GetAdapterInfo()    if AdapterInfoDict["NumberOfDis"] == None:   #判断显示次数，None为无限次        t = 0                              #计数器，没10次打印一下行头        while True:            time.sleep(int(AdapterInfoDict["Interval"]))   #睡眠，根据时间间隔            facesSuf = GetAdapterInfo()                    #获取比对的结束网卡信息            if AdapterInfoDict["Action"] == "all":         #判断动作，是显示进，出或是全部的流量                if t % 10 == 0:                    print("%s:%s%s" % ("FaceName".rjust(10), "In".rjust(30), "Out".rjust(30)))                    print("%s"%"-".center(70,"-"))            elif AdapterInfoDict["Action"] == "in":                if t % 10 == 0:                    print("%s:%s" % ("FaceName".rjust(10), "In".rjust(30)))                    print("%s" % "-".center(40,"-"))            elif AdapterInfoDict["Action"] == "out":                if t % 10 == 0:                    print("%s:%s" % ("FaceName".rjust(10), "Out".rjust(30)))                    print("%s" % "-".center(40,"-"))            t += 1            for i in range(len(facesPre)):                if AdapterInfoDict["Action"] == "all":                    print("%s:%s%s"%(facesPre[i][0].rjust(10),str(facesSuf[i][1]-facesPre[i][1]).rjust(30),str(facesSuf[i][2]-facesPre[i][2]).rjust(30)))                elif AdapterInfoDict["Action"] == "in":                    print("%s:%s" % (facesPre[i][0].rjust(10), str(facesSuf[i][1] - facesPre[i][1]).rjust(30)))                elif AdapterInfoDict["Action"] == "out":                    print("%s:%s" % (facesPre[i][0].rjust(10), str(facesSuf[i][2] - facesPre[i][2]).rjust(30)))                else:                    print("The value of -a is a invalid action which you entered.")                    print("You can use -h to get help.")                    exitnum=89                    exit(exitnum)            facesPre=facesSuf            # time.sleep(int(AdapterInfoDict["Interval"]))    else:        for t in range(int(AdapterInfoDict["NumberOfDis"])):        #安装显示次数循环            time.sleep(int(AdapterInfoDict["Interval"]))            facesSuf = GetAdapterInfo()            #输出打印行头            if AdapterInfoDict["Action"] == "all":                if t % 10 == 0:                    print("%s:%s%s" % ("FaceName".rjust(10), "In".rjust(30), "Out".rjust(30)))                    print("%s" % "-".center(70,"-"))            elif AdapterInfoDict["Action"] == "in":                if t % 10 == 0:                    print("%s:%s" % ("FaceName".rjust(10), "In".rjust(30)))                    print("%s" % "-".center(40,"-"))            elif AdapterInfoDict["Action"] == "out":                if t % 10 == 0:                    print("%s:%s" % ("FaceName".rjust(10), "Out".rjust(30)))                    print("%s" % "-".center(40,"-"))            for i in range(len(facesPre)):                if AdapterInfoDict["Action"] == "all":                    print("%s:%s%s" % (facesPre[i][0].rjust(10), str(facesSuf[i][1] - facesPre[i][1]).rjust(30),                                       str(facesSuf[i][2] - facesPre[i][2]).rjust(30)))                elif AdapterInfoDict["Action"] == "in":                    print("%s:%s" % (facesPre[i][0].rjust(10), str(facesSuf[i][1] - facesPre[i][1]).rjust(30)))                elif AdapterInfoDict["Action"] == "out":                    print("%s:%s" % (facesPre[i][0].rjust(10), str(facesSuf[i][2] - facesPre[i][2]).rjust(30)))                else:                    print("The value of -a is a invalid action which you entered.")                    print("You can use -h to get help.")                    exitnum = 88                    exit(exitnum)            facesPre = facesSuf            # time.sleep(int(AdapterInfoDict["Interval"]))    exit(exitnum)