最近正在学习python脚本基础编程。随便写了一个简单服务器信息检测脚本。有不足之处还请大家多多批评指正。

termcolor这个模块需要单独安装，只能在python2.6上正常运行

 

#!/usr/bin/env python2.6

import os
import sys
import re
import termcolor

def cpu():
    cpu=open('/proc/cpuinfo','r')
    lines = cpu.readlines()
    for line in lines:
        model=re.match('model name.*$',line)
        if type(model).__name__ != 'NoneType':
            print " CPU Type :|%s" %(model.group().split(':')[1])
            break

def mem():     
    mem=open('/proc/meminfo','r')
    total = [re.match('MemTotal.*$',x) for x in mem]
    for i in range(len(total)):
        if type(total[i]).__name__ != 'NoneType':
            K=float(total[i].group().split()[1])
            G="%2.3f GB" %(K/1024**2)
            if K<12000000:
                 print " MemTotal: |%-45s| %10s" %(G,termcolor.colored("ERROR",'red'))
            else:
                 print " MemTotal: |%-45s| %10s" %(G,termcolor.colored("OK",'green'))
            break
       
def ipaddress():
    cmd='/sbin/ip addr show dev eth0 | grep  "inet " |awk \'{print $2}\'| awk -F\/ \'{print $1}\''
    ip=os.popen(cmd).readlines()

    num=len(ip)
    if  num == 1:
        print "    eth0:  |"+termcolor.colored(str(num)+" IP on eth0",'red')
    elif num >=2:
        print "    eth0:  |"+termcolor.colored(str(num)+" IP on eth0",'green')
   
    for i in range(len(ip)):
        cmd="ping -c 4 -i 0.5 -I %s 119.57.20.28" %(ip[i].strip())
        ping=os.popen(cmd).readlines()
        loss=[re.match('.*loss.*$',j) for j in ping]
   
        for k in range(len(loss)):
            if type(loss[k]).__name__ != 'NoneType':
                if loss[k].group().split()[5] == '100%':
                    print "    eth0:  |%-45s| %10s" %(ip[i].strip(),termcolor.colored("ERROR",'red'))
                else:
                    print "    eth0:  |%-45s| %10s" %(ip[i].strip(),termcolor.colored("OK",'green'))

def dns():
    cmd='/usr/bin/dig www.linuxtone.org | sed -n \'/ANSWER SECTION/,/;;/p\'|grep -v ";;"'
    dig=os.popen(cmd).readlines()
    if len(dig) == 0:
        print "    DNS:   |%-45s| %10s" %("DNS configuration",termcolor.colored("ERROR",'red'))
    else:
        print "    DNS:   |%-45s| %10s" %("DNS configuration",termcolor.colored("OK",'green'))
       
def gateway():
    cmd='/sbin/route -n|sed -n \'2~1p\''
    gate=os.popen(cmd).readlines()
    print   "  Gateway: |Gateway configuration"
    for i in range(len(gate)):
        print gate[i],
 
cpu()
mem()
ipaddress()
dns()
gateway()

运行效果：