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Powershell中使用WMI工具例子

2017年12月08日  | 移动技术网IT编程  | 我要评论

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wmi是一个强大的技术：只需要简单的指定一个wmi类名就能返回它类的所有实例：

复制代码 代码如下:

ps> get-wmiobject -class win32_bios

smbiosbiosversion : 76cn27ww
manufacturer      : lenovo
name              : 76cn27ww
serialnumber      : 1006250300406
version           : lenovo - 1

你如何知道它有哪些类呢？这里有一款查找工具：

复制代码 代码如下:

function find-wmiclass
{
   param
   (
      [parameter(mandatory=$true)]
      $searchterm = 'resolution'
   )
  
   get-wmiobject -class * -list |
   where-object { $_.properties.count -ge 3 } |
   where-object { $_.name -notlike 'win32_perf*'  } |
   where-object {
      $listofnames = $_.properties | select-object -expandproperty name
      ($listofnames -like "*$searchterm*") -ne $null
   } |
   sort-object -property name 
}

设置搜索条件后，代码将搜索出包含指定属性名的类（还可以通过通配符扩大搜索范围）

下面将找出所有包含“resolution”结尾的wmi类：

复制代码 代码如下:

ps> find-wmiclass -searchterm *resolution


   namespace: root\cimv2

name                                methods              properties              
----                                -------              ----------              
cim_cachememory                     {setpowerstate, r... {access, additionalerr...
cim_currentsensor                   {setpowerstate, r... {accuracy, availabilit...
cim_flatpanel                       {setpowerstate, r... {availability, caption...
cim_memory                          {setpowerstate, r... {access, additionalerr...
cim_monitorresolution               {}                   {caption, description,...
cim_nonvolatilestorage              {setpowerstate, r... {access, additionalerr...
cim_numericsensor                   {setpowerstate, r... {accuracy, availabilit...
cim_pcvideocontroller               {setpowerstate, r... {acceleratorcapabiliti...
cim_pointingdevice                  {setpowerstate, r... {availability, caption...
cim_printer                         {setpowerstate, r... {availability, availab...
cim_tachometer                      {setpowerstate, r... {accuracy, availabilit...
cim_temperaturesensor               {setpowerstate, r... {accuracy, availabilit...
cim_videocontroller                 {setpowerstate, r... {acceleratorcapabiliti...
cim_videocontrollerresolution       {}                   {caption, description,...
cim_volatilestorage                 {setpowerstate, r... {access, additionalerr...
cim_voltagesensor                   {setpowerstate, r... {accuracy, availabilit...
win32_cachememory                   {setpowerstate, r... {access, additionalerr...
win32_currentprobe                  {setpowerstate, r... {accuracy, availabilit...
win32_displaycontrollerconfigura... {}                   {bitsperpixel, caption...
win32_memoryarray                   {setpowerstate, r... {access, additionalerr...
win32_memorydevice                  {setpowerstate, r... {access, additionalerr...
win32_networkadapterconfiguration   {enabledhcp, rene... {arpalwayssourceroute,...
win32_pointingdevice                {setpowerstate, r... {availability, caption...
win32_printer                       {setpowerstate, r... {attributes, availabil...
win32_printerconfiguration          {}                   {bitsperpel, caption, ...
win32_smbiosmemory                  {setpowerstate, r... {access, additionalerr...
win32_temperatureprobe              {setpowerstate, r... {accuracy, availabilit...
win32_videoconfiguration            {}                   {actualcolorresolution...
win32_videocontroller               {setpowerstate, r... {acceleratorcapabiliti...
win32_voltageprobe                  {setpowerstate, r... {accuracy, availabilit...

接着，就可以使用类名查看它的有效数据啦：

复制代码 代码如下:

ps> get-wmiobject -class cim_cachememory | select-object -property *

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