POWERSHELL

 get-help about_operator
 
 get-help where-object
 
 get-service | where-object {$_.status -eq "running"}
 
 get-service | where-object {$_.name -eq "winrm"}
 
get-eventlog -logname application -Newest 50 | where-object {$_.EntryType -eq "error"}

get-hotfix | where-object {$_.Description -eq "update"}

Not equal:

 get-hotfix | where-object {$_.Description -ne "update"}
 
 get-help about_comparison_operators
 

Greater than:

get-process | where-object {$_.Handles -gt "1500"}

Less than:
get-process | where-object {$_.Handles -lt "100"}

greater than date:

 get-hotfix | where-object {$_.InstalledOn -gt "01/01/2020"}
 
 get-hotfix | where-object {$_.InstalledOn -gt "01/01/2019"}
 
 get-hotfix | where-object {$_.InstalledOn -gt "01-01-2019"}
 
 Like:
 
 get-service | where-object {$_.displayname -like "Application*"}
 
 get-process | where-object {$_.ProcessName -like "*host*"}
 
 get-service | where-object {$_.displayname -like "*manager"}
 
 logical operator:
 ================
 get-help about_logical_operators
 
 AND:
 
  get-service | where-object {$_.Status -eq "running" -and $_.DisplayName -like "windows*"}
 
  get-process | where-object {$_.Handles -gt 500 -and $_.Handles -lt 700}
 
  get-hotfix |where-object {$_.Description -eq "update" -and $_.InstalledOn -gt "01/01/2019"}