Python监控日志程序

转自：http://www.pythontab.com/html/2014/pythonhexinbiancheng_0822/856.html

    在网上看到一个讲监控日志的python代码，感觉比较有用，就转了过来，以便以后用的到的时候来参考一下：

      一个简易的日志监控的脚本，功能如下：1.windows环境2.当匹配日志关键字时会发出声音，匹配的关键字不同，播放的声音不同3.能做到实时响应

注意：是在win环境下哦

直接上代码吧：

#!/usr/bin/env python
# encoding: utf-8
   
"""
MonitorLog.py
   
Usage: MonitorLog.py ...
Monitor the log file
   
-f  log file
-h  help info
   
python MonitorLog.py -f C:monitor.log
   
"""
   
import sys
import os
import getopt
import subprocess
import time
import codecs
import winsound
   
ABSPATH = os.path.dirname(os.path.abspath(__file__))
MONITERCONF = 'moniter_keyword.txt' #utf8 file
   
def main():
    try:
        opts, args = getopt.getopt(sys.argv[1:], 'hf:')
    except getopt.GetoptError, err:
        print str(err)
        print __doc__
        return 1
   
    path = ''
    for k, v in opts:
        if k == '-f':
            path = v
        elif k == '-h':
            print __doc__
            return 0
   
    if not (path and os.path.exists(path)):
        print 'Invalid path: %s' % path 
        print __doc__
        return 2
   
    #命令行元组
    cmd = ('tail', '-f', path)
    print ' '.join(cmd)
    output = subprocess.Popen(cmd, stdout=subprocess.PIPE)
   
    keywordMap = {}
    #加载监控的关键字信息
    with codecs.open(os.path.join(ABSPATH, MONITERCONF), 'r', 'utf8') as f:
        lines = f.readlines()
    for line in lines:
        line = line.strip()
        if not line:
            continue
        keyword, wav = line.strip().split(':')
        keywordMap[keyword] = wav
   
    while True:
        line = output.stdout.readline()
        #process code,得到输出信息后的处理代码
        if not line:
            time.sleep(0.01)
            continue
        line = line.strip().decode('utf8')
        print line
        for keyword in keywordMap:
            if line.find(keyword) > -1:
                winsound.PlaySound(keywordMap[keyword], 
                                   winsound.SND_NODEFAULT)
        #time.sleep(0.01)
    return 0
   
if __name__ == '__main__':
    sys.exit(main())