PowerShell

Check for an open port

PS C:\Users\MHan> Test-NetConnection -ComputerName island.doodle.com -Port 443

Search files

PS C:\Users\MHan> Get-ChildItem -Recurse -Include *.* | Select-String "text to search for"

Check version

PS C:\Users\MHan> $PSversionTable

Name                           Value
----                           -----
PSVersion                      5.0.10586.1417
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.10586.1417
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1