Foreach

The foreach statement is used to iterate through a collection.

Usage of foreach

foreach ($item in $collection) {
	# do something to $item
}
		

Examples

Listing the active processes:

foreach ($i in Get-Process) {
	$i.ProcessName
}
# hit enter 1 more time if you still see the >> prompt
		

You could simply pipe it to the foreach statement. Use the $_ variable to refer to the current item in the foreach loop.

Get-Process | foreach { $_.ProcessName }
		

Or you can check if the process is responding

foreach ($item in Get-Process) {
	if ($item.Responding -eq "True"){
		Write-Host $Item.Name
	}
}
		

Listing processor information:

$strComputer = "."

$collectionItems = get-wmiobject -class "Win32_Processor" -namespace "root\CIMV2" `
-computername $strComputer

foreach ($objectItem in $collectionItems) {
      write-host "Caption: " $objectItem.Caption
      write-host "CPU Status: " $objectItem.CpuStatus
      write-host "Current Clock Speed: " $objectItem.CurrentClockSpeed
      write-host "Device ID: " $objectItem.DeviceID
      write-host "L2 Cache Size: " $objectItem.L2CacheSize
      write-host "L2 Cache Speed: " $objectItem.L2CacheSpeed
      write-host "Name: " $objectItem.Name
      write-host
}
		

Listing disk information:

$strComputer = "."

$collectionItems = get-wmiobject -class "Win32_DiskDrive" -namespace "root\CIMV2" `
-computername $strComputer

foreach ($objectItem in $collectionItems) {
      write-host "Description: " $objectItem.Description
      write-host "Device ID: " $objectItem.DeviceID
      write-host "Interface Type: " $objectItem.InterfaceType
      write-host "Media Type: " $objectItem.MediaType
      write-host "Model: " $objectItem.Model
      write-host "Partitions: " $objectItem.Partitions
      write-host "Size: " $objectItem.Size
      write-host "Status: " $objectItem.Status
      write-host
}
		

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