linux 统计网卡流量小脚本

#!/usr/bin/python
#
# zhaoyun
#
#
import re,time,sys,string

file = "/proc/net/dev"
def get_eth(eth):
ethx = []
for i in eth.split(','):
ethx.append(i)
return ethx
def get_data(ethx):
f = open(file,"r").readlines()
for i in f:
r = re.findall(r"%(ethx)s:.*." % vars(),i)
if r:
a = "".join(r).split()
input = a[0].split(':')[1:]
for input_value in input:
input = int(input_value)
output = int(a[8])
return input,output
def get_data_value(eth):
data = []
for ethx in eth:
data1 = get_data(ethx)
data.append(data1)
return data

def count_value_input(data,n,l):
count = 1
for i in data:
if count == n:
try:
for inp in i:
"1.py" 125L, 2227C written 3,2-8 Top
for i in range(1,len(dataa)+1):
inp1 = count_value_input(dataa,i,i)
inp2 = count_value_input(datab,i,i)
print_(inp1,inp2,"input",i,eth)
out1 = count_value_output(dataa,i,i)
out2 = count_value_output(datab,i,i)
print_(out1,out2,"output",i,eth)

def get_param(para,number):
c = 0
count = 0
p = []
try:
for i in sys.argv:
if i == para:
p.append(sys.argv[c+1])
count+=1
c +=1
if count == int(number):
return string.join(p)
except Exception:
return i+' Parameter Error'
def help_():
print '''
python %s -T 1 -I eth0,eth1,lo
''' %(sys.argv[0])

eth = get_param("-I",1)
Time = get_param("-T",1)
if eth and Time:
try:
Time = int(Time)
except Exception:
print "Time error"
sys.exit(2)
start_(eth,Time)
else:
help_()

使用方法：
#python 1.py -T 1 -I eth0,eth1
eth0 input :18854
eth0 output :1844
eth1 input :836
eth1 output :836

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