PowerShell Automatic Variables - part 2 $PSVersionTable
Example
Contains a read-only hash table (Constant, AllScope) that displays details about the version of PowerShell that is running in the current session.
$PSVersionTable #this call results in this: Name Value ---- ----- PSVersion 5.0.10586.117 PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...} BuildVersion 10.0.10586.117 CLRVersion 4.0.30319.42000 WSManStackVersion 3.0 PSRemotingProtocolVersion 2.3 SerializationVersion 1.1.0.1 The fastest way to get a version of PowerShell running:
$PSVersionTable.PSVersion # result : Major Minor Build Revision ----- ----- ----- -------- 5 0 10586 117 
