python操作ssh实现服务器日志下载的方法

#coding:utf-8
"""
 ssh操作例子 实现了服务器日志下载
 2012-08-24
 yywolf
"""
import paramiko
import time
hostname="????"
port=22
username="app"
password="????"
if __name__=="__main__":
# paramiko.util.log.log_to_file('paramiko.log')
 s = paramiko.SSHClient()
 s.load_system_host_keys()
 s.set_missing_host_key_policy(paramiko.AutoAddPolicy()) 
 s.connect(hostname,port,username,password,timeout=4)
 stdin,stdout,stderr = s.exec_command("sh ~/log/check")
 print stdout.read()
 s.close()
 #sftp
 t = paramiko.Transport((hostname,port))
 t.connect(username=username,password=password)
 sftp = paramiko.SFTPClient.from_transport(t)
 files = sftp.listdir("/home/app/log/")
 for f in files:
 print f
 filetime = time.strftime('%Y-%m-%d',time.localtime(time.time()))
 #需要下载的文件 和下载后的文件名
 sftp.get("/home/app/log/server.txt","C:\Users\Administrator\Desktop\server.txt") 
 sftp.get("/home/app/log/"+filetime+".log.zip","C:UsersAdministratorDesktop\"+filetime+".log.zip")
 #RASkey
 pkey_file = "E:\yy\tools\key\rsa.txt"
 key = paramiko.RSAKey.from_private_key_file(pkey_file)
 s = paramiko.SSHClient()
 s.load_system_host_keys()
 s.set_missing_host_key_policy(paramiko.AutoAddPolicy()) 
 s.connect(hostname,port,username,pkey=key)
 stdin, stdout, stderr = s.exec_command("ls -l /home/app/log")
 print stdout.read()
 s.close()
 raw_input()

希望本文所述对大家的Python程序设计有所帮助。