#!/usr/bin/python
#2013-02-18 by larry
import os
import sys
import re
from collections import Counter

def getSN():
    s=os.popen('dmidecode  -s  system-serial-number')
    n=os.popen('dmidecode  -s system-product-name')
    sn=s.readline().strip()
    name=n.readline().strip()
    s.close()
    if ( len(sn) > 0 ):
        print  "Product Name:",name
        print  "Serial Number:",sn,"\n"
    else:
        return -1

def getCPU():
    opfile=file('/proc/cpuinfo','r')
    cpucount=0
    phcpucount=0
    cpumodel=[]
    L1=[]
    for line in opfile.readlines():
            i=line.strip('\n')
            if re.match(r'^processor',i):
                cpucount=cpucount+1    
            elif re.match(r'^physical id',i):
                L1.append(i)
            elif re.findall('model name',i):
                cpumodel.append(i.split(':')[1])
            else:
                pass
    opfile.close()
    for num in Counter(L1).keys():
        phcpucount=phcpucount+1
    print "Processor number:",cpucount
    print "Physical CPU number:",phcpucount
    print "CPU Model:",cpumodel[0].strip(),"\n"

def getMem():
    m=os.popen('grep MemTotal  /proc/meminfo')
    max=os.popen('dmidecode  -t memory')
    swm=os.popen('grep SwapTotal /proc/meminfo')
    L=[]
    for line in max.readlines():
        R1=line.strip("\n")
        if re.findall('Maximum',R1):
            sw,se=R1.split(":")
            L.append(se)
    max.close()
    for line1 in swm.readlines():
        sw1,sw2,sw3=line1.split()
        L.append(sw2)
    for line2 in m.readlines():
        m1,m2,m3=line2.split()
        L.append(m2)
    print "Memory Total:",int(L[2])/1000/1000,"G"
    print "Swap Total:",int(L[1])/1024,"M"
    print "Max support Memory:",L[0]
 
if __name__ == '__main__':
    print "\x1b[0;34m+++++++++++Device SN+++++++++\x1b[0m"
    getSN()
    print "\x1b[0;34m+++++++++++Cpu Info++++++++++\x1b[0m"
    getCPU()
    print "\x1b[0;34m+++++++++++Memory +++++++++++\x1b[0m"
    getMem()

执行脚本结果:

+++++++++++Device SN+++++++++
Product Name: PowerEdge 860
Serial Number: BBNRF2X

+++++++++++Cpu Info++++++++++
Processor number: 4
Physical CPU number: 1
CPU Model: Intel(R) Xeon(R) CPU           X3210  @ 2.13GHz

+++++++++++Memory +++++++++++
Memory Total: 4 G
Swap Total: 8189 M
Max support Memory:  8 GB

一、安装easy_install工具
wget http://peak.telecommunity.com/dist/ez_setup.py
python ez_setup.py 安装easy_install工具（这个脚本会自动去官网搜索下载并安装）
python  ez_setup.py  -U setuptools  升级easy_install工具

二、安装pexpect
easy_install Pexpect

测试一下:
[root@OMS python]# python
Python 2.7.3rc1 (default, Nov  7 2012, 15:03:45)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pexpect
>>> import pxssh
>>>

ok已经安装完成。
三、写一个脚本给远程服务器发送命令，并返回结果。

脚本内容:

#!/usr/bin/python
#2013-01-16 by larry
import pexpect
def login(port,user,passwd,ip,command):
    child=pexpect.spawn('ssh -p%s %s@%s "%s"' %(port,user,ip,command))
    o=''
    try:
        i=child.expect(['[Pp]assword:','continue connecting (yes/no)?'])
        if i == 0: 
            child.sendline(passwd)
        elif i == 1:
            child.sendline('yes')
        else:
            pass
    except pexpect.EOF:
        child.close()
    else:
        o=child.read()
        child.expect(pexpect.EOF)
        child.close()
    return o

hosts=file('hosts.list','r')
for line in hosts.readlines():
    host=line.strip("\n")
    if host:
        ip,port,user,passwd,commands= host.split(":")
        for command in commands.split(","):
            print "+++++++++++++++ %s run:%s ++++++++++++" % (ip,command),
            print login(port,user,passwd,ip,command)   
hosts.close()

使用方法:python scripts.py

host.list文件内容如下:

192.168.0.21:22999:root:123456:cat /etc/redhat-release,df -Th,whoami
192.168.0.21:22999:root:123456:cat /etc/redhat-release,df -Th,whoami

返回结果:
+++++++++++++++ 192.168.0.21 run:cat /etc/redhat-release ++++++++++++  
Red Hat Enterprise Linux Server release 4

+++++++++++++++ 192.168.0.21 run:df -Th ++++++++++++  
文件系统      类型    容量  已用 可用 已用% 挂载点
/dev/cciss/c0d0p6
              ext3    5.9G  4.4G  1.2G  80% /
/dev/cciss/c0d0p7
              ext3    426G  362G   43G  90% /opt
/dev/cciss/c0d0p5
              ext3    5.9G  540M  5.0G  10% /var
/dev/cciss/c0d0p3
              ext3    5.9G  4.1G  1.5G  74% /usr
/dev/cciss/c0d0p1
              ext3    487M   17M  445M   4% /boot
tmpfs        tmpfs    4.0G     0  4.0G   0% /dev/shm

+++++++++++++++ 192.168.0.21 run:whoami ++++++++++++  
root

#!/usr/bin/python
# -*- coding: UTF-8 -*-
import os,sys

def Vallfile(path):
    for dirnames,dirs,files in os.walk(path,True):
        for filepath in files:
            print os.path.join(dirnames, filepath)
          
if __name__=="__main__":
    path =sys.argv[1]
    Vallfile(path)

使用方法:

python findallfiles.py 目录路径

例如:

[root@OMS tmp]# python bcd.py  /usr/local/nagios
/usr/local/nagios/share/index.php
/usr/local/nagios/share/robots.txt
/usr/local/nagios/share/side.php
/usr/local/nagios/share/rss-newsfeed.php
/usr/local/nagios/share/config.inc.php
/usr/local/nagios/share/rss-corefeed.php

I'm so hapyy to come here.

I can start my programmer's road now.