python: 从远程服务器下载日志程序

本文提供了一种方法，该程序可实现抓取服务器的日志文件到本地，根据该程序可自行扩展对日志文件的自动化分析。常用于数据挖掘、生产维护等。

import os
import sys
import ftplib
import socket

##################################################################
#    sign in the ftp server and download the log file.  
#    登陆生产服务器下载日志
#################################################################
def getServerLog(dir,fileName,host,userName,password):
    if os.path.exists(fileName):
        print '****the file '+ fileName +' has already exist! The file will be over writed'         
    #connect
    try:
        f=ftplib.FTP(host)
    except (socket.error,socket.gaierror),e:
        print '----ERROR:cannot reach '+host
        print e
        return False
    #login    
    try:
        f.login(user=userName,passwd=password)
    except ftplib.error_perm ,e:
        print '----ERROR:cannot login to server '+host
        print e
        f.quit()
        return False
    print '****Logged in as ' + userName + ' to server ' +host
    #change folder
    try:
        f.cwd(dir)
    except ftplib.error_perm,e:
        print '----ERROR:cannot CD to %s on %s' % (dir,host)
        print e
        f.quit()
        return False
    print '**** changed to %s folder on %s' % (dir,host)
    #get file
    try:
        f.retrbinary('RETR %s' % fileName,open(fileName,'wb').write)
    except ftplib.error_perm,e:
        print '----ERROR:cannot read file %s on %s' % (fileName,host)
        print e
        os.unlink(fileName)
        return False
    else:
        print '****Downloaded '+ fileName +' from '+ host +' to '+os.getcwd()
        f.quit()
        return  True
        
if __name__ == "__main__":
    getServerLog("/userhome/root/other/temp","a.out","10.10.10.10","root","password")
    print '****done'

 

运行：python getServerLog.py