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()