Wanted to try to generate a random text every so often to prevent screen locking which did not work and stumbled upon this and learned a couple of neat tricks from PowerShell.  The actual solution that seems to work for preventing screen locking is here

-join ((65..90) + (97..122) | Get-Random -Count 5 | % {[char]$_})

Then the script to write random text to a screen on an interval

Clear-Host
Echo "...Hello I randomly type things to avoid screen locking..."
while ($true)
{
	$word = -join ((65..90) + (97..122) | Get-Random -Count 5 | % {[char]$_})
	Write-Host $word
	Start-Sleep -Seconds 2
}

Output

...Hello I randomly type things to avoid screen locking...
JoIVe
OekJi