Powershell获取WMI设备清单

Powershell获取WMI设备清单

支持所有PS版本。

WMI服务能够报告详细的硬件信息。通常，每个硬件都来自它们自己的WMI代理类。但是要找出这些硬件类的名字是不容易。

所有硬件类都在同一个WMI根下面，你可以在根类查询所有的硬件：

1	Get-WmiObject -Class CIM_LogicalDevice |  Out-GridView

上面命令能返回基础硬件清单。但是你要获得更多的信息，加上补充的代码，你还可以从WMI中获得硬件类的名字：

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Get-WmiObject -Class CIM_LogicalDevice |    Select-Object -Property __Class, Description |    Sort-Object -Property __Class -Unique |    Out-GridView

现在你可以使用不同的类名查询硬件的详细类型和获得它们的清单：

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PS>  Get-WmiObject -Class Win32_SoundDevice   Manufacturer        Name                Status                       StatusInfo ------------        ----                ------                       ---------- Cirrus Logic, Inc.  Cirrus Logic CS4... OK                                    3 Intel(R) Corpora... Intel(R) Display... OK                                    3

原文地址：WMI Device Inventory 

$Server = $env:computername
#server's CPU Mem Hardinfor 
  $cpu = gwmi –computername $Server win32_Processor 
  $men = gwmi -ComputerName $Server win32_OperatingSystem 
  $Disks = gwmi –Computer: $Server win32_logicaldisk -filter "drivetype=3" 
  $Havecpu = "{0:0.0} %" -f $cpu.LoadPercentage 
  $Allmen = "{0:0.0} MB" -f ($men.TotalVisibleMemorySize  / 1KB) 
  $Freemen = "{0:0.0} MB" -f ($men.FreePhysicalMemory  / 1KB) 
  $Permem =  "{0:0.0} %" -f ((($men.TotalVisibleMemorySize-$men.FreePhysicalMemory)/$men.TotalVisibleMemorySize)*100) 
  Write-Host "COMPUTER:$Server"`r`n
  Write-Host "CPU: $Havecpu"`r`n
  Write-Host "Total Mem:$Allmen"`r`n 
  Write-Host "Left Mem:$Freemen"`r`n
  Write-Host "Used Mem:$Permem"`r`n
  $IpAdd = (Get-WmiObject -class win32_NetworkAdapterConfiguration -Filter 'ipenabled = "true"').ipaddress[0]
  Write-Host "Ipaddress:$IpAdd"`r`n

Get-WmiObject 即将过时

在PowerShell 3.0 中，你仍然可以使用功能强大的Get-WmiObject命令，但是它们会逐渐被CIM命令所替代。如果你已经在使用Get-WmiObject命令查询数据。那可以非常流畅地切换至Get-CimInstance，因为这类命令都比较类似。只不过Get-CimInstance执行的结果只是名副其实的Instance,没有包含任何方法信息。

一方面如果你要确保向后兼容，另一方面你可能想避免使用CIM的命令，这就需要PowerShell 3.0。但可惜的是，PowerShell 3.0 不能运行在XP，Vista，Win 2003中。

原文链接：Get-WmiObject Becomes Obsolete

Powershell 获取系统可用内存

http://www.pstips.net/powershell-get-free-memory.html

使用Powershell获取系统可用内存可以使用两种方法，一种是wmi Win32_OperatingSystem对象，另一种是可以通过性能计数器。

通过Win32_OperatingSystem，代码如下：

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$ops =  Get-WmiObject -Class Win32_OperatingSystem "机器名      : {0}" -f $ops .csname "可用内存(MB): {0}" -f ( [math] ::round( $ops .FreePhysicalMemory / 1kb, 2)) "可用内存(GB): {0}" -f ( [math] ::round(( $ops .FreePhysicalMemory / (1mb)), 2))

输出如下:

机器名      : BAOZHEN-PC
可用内存(MB): 1834.59
可用内存(GB): 1.79

通过性能计数器获取可用内存,代码如下:

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#查看内存相关的性能计数器   ( Get-Counter -ListSet memory).Counter #Available Bytes 为可用的内存大小 #通过Path获取该计数器 $availableMemoryCounter = Get-Counter -Counter "\Memory\Available Bytes" $freeMemory = $availableMemoryCounter .CounterSamples[0].rawValue   #把可用内存转换成GB "可用内存:$([Math]::Round($freeMemory/1gb,2))GB" #把可用内存转换成MB "可用内存:$([Math]::Round($freeMemory/1mb,2))MB"

输出如下:

MemoryCache Bytes
MemoryCache Bytes Peak
MemoryPool Paged Resident Bytes
MemorySystem Code Total Bytes
MemorySystem Code Resident Bytes
MemorySystem Driver Total Bytes
MemorySystem Driver Resident Bytes
MemorySystem Cache Resident Bytes
Memory% Committed Bytes In Use
MemoryAvailable KBytes
MemoryAvailable MBytes
MemoryTransition Pages RePurposed/sec
MemoryFree & Zero Page List Bytes
MemoryModified Page List Bytes
MemoryStandby Cache Reserve Bytes
MemoryStandby Cache Normal Priority Bytes
MemoryStandby Cache Core Bytes
可用内存:1.69GB
可用内存:1731MB

===============================================

#查看当前CPU利用率

$counter = New-Object Diagnostics.PerformanceCounter
$counter.CategoryName = "Processor"
$counter.CounterName = "% Processor Time"
$counter.InstanceName = "_Total"

while ($true)
{
    $value = $counter.NextValue()
    Write-Host "CPU: $value"
    sleep 1
}

#查看进程的CPU利用率：

#取CPU核心数量，如果计算机为多核心的话，Process/% Processor Time的结果为每个核心的CPU利用率之和，会大于100%
$cpus = (gwmi win32_computersystem).NumberOfLogicalProcessors
 
$counter = New-Object Diagnostics.PerformanceCounter
$counter.CategoryName = "Process"
$counter.CounterName = "% Processor Time"
$counter.InstanceName = "winrar" #定义需要监视的进程
#获取当前计数器的值
$counter.NextValue()/$cpus

#查看进程的内存使用情况：

$TotalMemory = (Get-WmiObject -Class Win32_PhysicalMemory |measure capacity -sum).Sum   #(gwmi win32_computersystem).TotalPhysicalMemory

$counter = New-Object Diagnostics.PerformanceCounter
$counter.CategoryName = "Process"
$counter.CounterName = "Working Set - Private"
$counter.InstanceName = "ZQErpService" #定义需要监视的进程
#获取当前计数器的值

$counter.NextValue()/$TotalMemory