This is how you would display “Hello World” in PowerShell.
Note: PowerShell commands also have the ability to be run in a script with the .ps1 extension but running scripts are disabled by default for security purposes. Firstly, you will need to set the Execution Policy. The cmdlet Get-ExecutionPolicy will show you that the initial policy is set to ‘Restricted’. This will prevent scripts from running. You can change it with the Set-ExecutionPolicy cmdlet. There are four options Restricted, Remote-signed, Signed and Unrestricted. We recommend Remote-Signed as it will allow you to run the scripts that you have created locally and still keep your machine secure.
So, just type
Set-ExecutionPolicy RemoteSigned
Now you can use notepad to create your first script. In Notepad type:
Write-Host "Hello World"
This will need to be saved in a file called something like HelloWorld.ps1.
Then from a PowerShell console type
.\HelloWorld.ps1
The reason you need the .\ is because a PowerShell security feature ensures that you are targeting a specific script in a specific location,. And that’s all there is to it.
