在批量服务器密码统一的情况下使用：
参数介绍：
-u   用户名
-p 密码
-P port
-s  要执行的脚本
-c 要执行的命令
-f  要执行的服务器IP列表

指定-s的时候，直接执行脚本，跳过-c

#!/bin/env python  import paramiko  import sys,os  import time  from optparse import OptionParser  parser = OptionParser(add_help_option=0)  parser.add_option("-f", "--file", action="store", type="string", dest="listfile",default="")  parser.add_option("-u", "--user", action="store", type="string", dest="username",default="root")  parser.add_option("-p", "--passwd", action="store", type="string", dest="password",default="mypass")  parser.add_option("-P", "--port", action="store", type="string", dest="port",default="22")  parser.add_option("-c", "--cmd", action="store", type="string", dest="cmdline",default="hostname")  parser.add_option("-s", "--script", action="store", type="string", dest="script",default="")  (options, args) = parser.parse_args()  listfile=options.listfile  username = options.username  passwd = options.password  port = options.port  rcmd = options.cmdline  scriptfile = options.script  time_now = time.strftime('%Y%m%d%H%M%S')  infofile="log/info.txt"  if os.path.isdir("log"):      pass  else:      os.mkdir("log")  if os.path.isfile(infofile):          os.rename(infofile,infofile+time_now)  info = open(infofile,"a")  def execmd(host,port,username,passwd,rcmd):      #info = open(infofile,"a")      try:          client = paramiko.SSHClient()          #client.load_system_host_keys()          client.set_missing_host_key_policy(paramiko.AutoAddPolicy())          client.connect(host,port=int(port),username=username,password=passwd,timeout=1)          #rcmd = "ifconfig eth0|grep HWaddr|awk '{print $NF}'"          print rcmd          stdin, stdout, stderr = client.exec_command(rcmd)          #info.write(host+"\n"+"@"*20+"\n")          for line in stdout:              info.write("%s: %s"%(host,line))          client.close()      except:          info.write("%s: SSH Login Faild\n\n"%(host))      #info.close()  def transfile():      try:          trans = paramiko.Transport((host,int(port)))          trans.connect(username=username,password=passwd)          sftp = paramiko.SFTPClient.from_transport(trans)          #sftp.get("","")          sftp.put(scriptfile,"/tmp/%s"%scriptfile)          trans.close()      except:          #print "File translation faild"          info.write("%s: File translation faild\n"%(host))  if __name__=="__main__":      for ipaddr in open(listfile).readlines():          host = ipaddr.strip("\n").rstrip().lstrip()          print host          if scriptfile == "":              pass          else:              transfile()              rcmd="sh /tmp/%s"%scriptfile          execmd(host,port,username,passwd,rcmd)      info.close()