PowerShell By Example: Hello World

As with every first program we write, we will print the classic “hello world” message. Here’s the full source code.

Write-Host 'Hello, World!'
'Hello, World!' | Write-Host


Hello, World!
Hello, World!

There is another method to print the output or the strings to screen and that is is Write-Output.

Write-Output 'Hello, World!'
'Hello, World!' | Write-Output

This will print the exact same thing as the previous snippet.


Hello, World!
Hello, World!

It all becomes different when the two commands are used to store the output.

$wh = 'Hello, World!' | Write-Host
$wo = 'Hello, World!' | Write-Output

Get-Variable wh

Get-Variable wo


Name                           Value
----                           -----
wo                             Hello, World!

As you can see the Write-Host outputs the value to the console while the Write-Output command stores the output in the variable.