PowerShell
Version
Windows Server 2012 ships with PowerShell version 3
To check version use...
$PSVersionTable.PSVersion
Running PowerShell scripts
Assuming you are in a PowerShell window and the script you want to run has a .ps1 extension and is in your current working directory, run...
./myscript.ps1
From outside PowerShell (i.e. Windows command prompt), you can use...
powershell -File ./myscript.ps1
If your default script execution policy does not allow this, try...
powershell -executionpolicy bypass -File ./myscript.ps1
Current Environment
Get-Childitem -Path Env:* | Sort-Object Name
${env:UserName}
${env:UserDomain}
${env:ComputerName}
${env:Path}
Get-Childitem $Env:Temp -Recurse
Help About_Environment_Variables
Get-Module -ListAvailable
All current environment variables
Current User
Current User's Domain
Current Computer Name
Path
Show Temp Files
Get more information
List installed PowerShell modules
Windows Version/Build information...
Get-WmiObject Win32_OperatingSystem | Select PSComputerName, Caption, OSArchitecture, Version, BuildNumber | FL
Examples
powershell "dir | tee test.txt"Â
Remote Commands
Interactive Session...
Enter-PSSession myServer
...
Exit-PSSession
Remote Command...
Invoke-Command -ComputerName myServer, myOtherServer -ScriptBlock {Get-UICulture}
To run a script (available on your local computer)...
Invoke-Command -ComputerName myServer, myOtherServer -FilePath c:\mypath\myScript.ps1
Further information...
https://docs.microsoft.com/en-us/powershell/scripting/learn/remoting/running-remote-commands?view=powershell-7Examples
Windows Version for Remote Computer...
Get-WmiObject Win32_OperatingSystem -ComputerName "Remote_Machine_Name" |
Select PSComputerName, Caption, OSArchitecture, Version, BuildNumber | FL
Modules & Cmdlets
Adding cmdlets
PowerShellGet
PowerShellGet is already installed if you have... Windows 10 or newer, Windows Server 2016 or newer, Windows Management Framework (WMF) 5.0 or newer, or PowerShell 6. For Windows Server 2012 it is recommended to install the latest compatible version of PowerShell (at time of writing this was PowerShell 7)Bibliography
Powershell Scriptshttps://learn.microsoft.com/en-us/powershell/scripting/windows-powershell/ise/how-to-write-and-run-scripts-in-the-windows-powershell-isehttps://www.windowscentral.com/how-create-and-run-your-first-powershell-script-file-windows-10https://www.tutorialspoint.com/how-to-run-a-powershell-script-from-the-command-prompthttps://stackoverflow.com/questions/2035193/how-to-run-a-powershell-script
Visual Studio Codehttps://code.visualstudio.com/docs/
PowerShell to EXEhttps://stackoverflow.com/questions/48338017/convert-powershell-script-to-exe
Wordwraphttps://stackoverflow.com/questions/1059663/is-there-a-way-to-wordwrap-results-of-a-powershell-cmdlet
PowerShellGethttps://learn.microsoft.com/en-us/powershell/scripting/whats-new/cmdlet-versions#powershellget-2x
Current Environmenthttps://stackoverflow.com/questions/2085744/how-do-i-get-the-current-username-in-windows-powershellhttps://www.computerperformance.co.uk/powershell/environmental-variables/https://morgantechspace.com/2017/09/how-to-find-windows-os-version-using-powershell.html
Driveshttps://www.computerperformance.co.uk/powershell/get-psdrive/https://www.computerperformance.co.uk/powershell/wmi-disk/
Splattinghttps://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_splatting
WMI/CIMhttps://learn.microsoft.com/en-us/powershell/scripting/learn/ps101/07-working-with-wmihttps://learn.microsoft.com/en-us/powershell/module/cimcmdlets/get-ciminstance
Win32https://learn.microsoft.com/en-us/windows/win32/cimwin32prov/win32-logicaldisk
