Saturday, 29 August 2015

Powershell Where-Object Filter Examples

We can use the cmdlet Where-Object to filter data returned by other cmdlets. The below command filter the result form Get-Process command and select processes which name is equal to "svchost".
Get-Process | Where-Object {$_.Name -eq "svchost"}
The below command looking for processes where handles were greater than or equal to 200
Get-Process | Where-Object {$_.handles -ge 200}
You can also use the -and and -or parameters.
Get-Process | Where-Object {$_.handles -gt 200 -and $ -eq "svchost"}
You can also filter by Boolean value (True/False).
Get-Service | Where-Object {$_.CanStop}
Get-Service | Where-Object { -not $_.CanStop}

Other useful conditional operators are:

-lt -- Less than
-le -- Less than or equal to
-gt -- Greater than
-ge -- Greater than or equal to
-eq -- Equal to
-ne -- Not equal to
-like -- Like; uses wildcards for pattern matching


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