PowerShell/Scripts/write-typewriter.ps1

<#
.SYNOPSIS
	Writes text with the typewriter effect
.DESCRIPTION
	This PowerShell script writes text with the typewriter effect.
.PARAMETER text
	Specifies the text to write
.PARAMETER speed
	Specifies the speed (250 ms by default)
.EXAMPLE
	PS> ./write-typewriter "Hello World"
.NOTES
	Author: Markus Fleschutz / License: CC0
.LINK
	https://github.com/fleschutz/PowerShell
#>

param([string]$text = "`nHello World`n-----------`nPowerShell is cross-platform`nPowerShell is open-source`nPowerShell is easy to learn`nPowerShell is fully documented`n`nThanks for watching`n`n:-)`n`n", [int]$speed = 250) # in milliseconds

try {
	$Random = New-Object System.Random

	$text -split '' | ForEach-Object {
		write-host -nonewline $_
		start-sleep -milliseconds $(1 + $Random.Next($speed))
	}
	exit 0 # success
} catch {
	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}