python实现扫描日志关键字的示例-创新互联

我们在压力测试过程会收集到很多log，怎样快速从中找到有用信息呢？让python脚本帮我们做这部分工作吧！

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废话不说，上代码

环境：win10 + python2.7.14

#-*- encoding: utf-8 -*-
#author : beihuijie
#version 1.1
import re
import sys
import os
import countTime
def getParameters():
 '''
 get parameters from console command
 '''
 with open(sys.argv[1], "r") as fread:
 lines = fread.readlines()
 keywords=[]
 for line in lines:
  temp = line.split(', ')
  keywords.append(temp)
 for i in range(0, (len(keywords[0]) - 1)):
  print ' Keyword = %s' % keywords[0][i]
 return keywords[0]
def isFileExists(strfile):
 '''
 check the file whether exists
 '''
 return os.path.isfile(strfile)
def Search(keyword, filename):
 '''
 search the keyword in a assign file
 '''
 if(isFileExists(filename) == False):
 print 'Input filepath is wrong,please check again!'
 sys.exit()
 linenum = 1
 findtime = 0
 with open(filename, 'r') as fread:
 lines = fread.readlines()
 for line in lines:
  rs = re.findall(keyword, line, re.IGNORECASE)
  if rs:
  #output linenum of keyword place 
  sys.stdout.write('line:%d '%linenum)
  lsstr = line.split(keyword)
  strlength = len(lsstr)
  findtime = findtime + 1
  #print strlength
  for i in range(strlength):
   if(i < (strlength - 1)):
   sys.stdout.write(lsstr[i].strip())
   sys.stdout.write(keyword)
   else:
   sys.stdout.write(lsstr[i].strip() + '\n')
  linenum = linenum + 1
 print '+----------------------------------------------------------------------------+'
 print (' Search result: find keyword: %s %d times'%(keyword, findtime))
 print '+----------------------------------------------------------------------------+'
def executeSearch():
 '''
 this is a execute search method
 '''
 ls = getParameters()
 start = countTime.getTime()
 parameter_number = len(ls)
 print 'Filename = %s ' % ls[parameter_number - 1]
 print '--------------------start search-------------------------'
 if(parameter_number >= 2):
 for i in range(parameter_number - 1):
  Search(ls[i], ls[parameter_number - 1])
 else:
 print 'There is a parameter error occured in executeSearch()!'
 end = countTime.getTime()
 print '+----------------------------------------------------------------------------+'
 print ' Total cost time: %s'%countTime.formatTime(end - start)
 print '+============================================================================+'
 
if __name__=='__main__':
 executeSearch()

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