Python日常运维脚本

1    扫描Windows系统CPU、内存、磁盘利用率

1.1    实现代码

#!usr/bin/env python
#-*- coding:utf-8 _*-

"""
@author:T-guoh
@file: server_monitor.py
@time: 2019/03/18
"""

import psutil
import os
import socket

cpu = {'user':0,'system':0,'idle':0,'percent':0}
mem = {'total' : 0, 'avaiable' : 0, 'percent' : 0, 'used' : 0, 'free' : 0}
disk_id = []
disk_total = []
disk_used = []
disk_free = []
disk_percent = []

#获取CPU信息
def get_cpu_info():
    cpu_times = psutil.cpu_times()
    cpu['user'] = cpu_times.user
    cpu['system'] = cpu_times.system
    cpu['idle'] = cpu_times.idle
    cpu['percent'] = psutil.cpu_percent(interval=2)

#获取Memory信息
def get_mem_info():
    mem_info = psutil.virtual_memory()
    mem['total'] = mem_info.total
    mem['avaiable'] = mem_info.available
    mem['percent'] = mem_info.percent
    mem['used'] = mem_info.percent
    mem['free'] = mem_info.free
#获取Disk信息
def get_disk_info():
    for id in psutil.disk_partitions():
        if 'cdrom' in id.opts or id.fstype == '':
            continue
        disk_name = id.device.split(':')
        s = disk_name[0]
        disk_id.append(s)
        disk_info = psutil.disk_usage(id.device)
        disk_total.append(disk_info.total)
        disk_used.append(disk_info.used)
        disk_percent.append(disk_info.percent)
        disk_free.append(disk_info.free)
#定义主函数
def main():
    get_cpu_info()
    cpu_status = cpu['percent']
    get_mem_info()
    mem_status = mem['percent']
    hostname = os.environ['COMPUTERNAME']
    username = os.environ['USERNAME']
    ip_addr = socket.gethostbyname(hostname)
    print('======基本信息======')
    print('主机名：'+ hostname+ '\nIP地址：' + ip_addr + '\n用户名：' + username)
    print('====================')
    print('\n=====资源使用率=====')
    print('CPU使用率：%s %%' % cpu_status)
    print('Mem使用率：%s %%' % mem_status)
    get_disk_info()
    for i in range(len(disk_id)):
        print('%s盘空闲率：%s %%' % (disk_id[i], round(100 - disk_percent[i], 2)))
    print('====================')
    os.system('pause')

if __name__ == '__main__':
    main()

1.2    运行结果

2    扫描Windows系统Top目录与文件大小

2.1    实现代码

#!usr/bin/env python
#-*- coding:utf-8 _*-

"""
@author:T-guoh
@file: server_monitor.py
@time: 2019/03/18
"""

import os

#统计指定目录下各个文件夹的大小，方便观察具体目录的大小
def CountDirSize(srcDir):
    dirSizeDict = {}
    fileSizeDict = {}
    for fileList in os.listdir(srcDir):
        filePath = os.path.join(srcDir,fileList)
        if os.path.isdir(filePath):
            size = 0
            for roots,dirs,files in os.walk(filePath):
                for fileName in files:
                    fileNamePath = os.path.join(roots,fileName)
                    sizetemp = 0
                    try:
                        sizetemp = os.path.getsize(fileNamePath)
                        if sizetemp > 1024*1024:
                            fileSizeDict[fileNamePath] = sizetemp
                    except:
                        sizetemp = 0
                    size += sizetemp
            dirSizeDict[fileList] = size
    #按照从大到小的顺序降序排列
    dirSizeDict = sorted(dirSizeDict.items(),key = lambda dirSizeDict:dirSizeDict[1],reverse = True)
    Sum = 0
    #各个目录占用空间
    print("Each directory takes up space:")
    for ele in dirSizeDict:
        temp = ele[1]/1024/1024
        Sum += temp
        #以单位为M，输出大小
        print(ele[0] + ":" + str(temp) + " M")
    #以单位为G，输出大小
    print("Total use:" + str(Sum / 1024) +" G")
    print("")
    #前20个大文件占用空间
    print("Top 20 large file takes up space:")
    fileSizeDict = sorted(fileSizeDict.items(),key = lambda fileSizeDict:fileSizeDict[1],reverse = True)
    for ele in fileSizeDict[:20]:
        print(ele[0] + ":" +str(ele[1]/1024/1024) + " M")

if __name__ == "__main__":
    srcDir = "c:\\"
    CountDirSize(srcDir)

2.2    运行结果