PowerShell tricks using WMI Tools _powershell

WMI is a powerful technology: simply specifying a WMI class name can return all instances of its class:

Copy Code code as follows:

Ps> Get-wmiobject-class Win32_BIOS

Smbiosbiosversion:76cn27ww
Manufacturer:lenovo
Name:76cn27ww
serialnumber:1006250300406
Version:lenovo-1

How do you know which classes it has? Here's a search tool:

Copy Code code as follows:

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
}

After you set the search criteria, your code will search for the class that contains the specified property name (you can also expand your search by wildcard characters)

The following will find all the WMI classes that contain the end of "Resolution":

Copy Code code as follows:

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 ...

Next, you can use the class name to view its valid data:

Copy Code code as follows:

ps> Get-wmiobject-class Cim_cachememory | Select-object-property *

Experience:

In fact, there is a similar function of the graphics tool is more convenient and intuitive than this code, it is called ScriptomaticV2.

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