while and Foreach in PowerShell!

This script will move all of the .bak files, and just the .bak files from the immediate folder up one folder. Note the -ne for not equals and the -lt for less than! Cool stuff.

$a = Get-Location
$e = $a.Path
$i = $e.length
$o = 0
$u = ""
$y = @()
while($e[$i-1] -ne "\") { $i-- }
while($o -lt $i-1) { $u = $u + $e[$o] ; $o++ }
$y += Get-ChildItem -Filter *.bak
Foreach ($x in $y) { Move-Item -Path ($e + "/" + $x.Name) -Destination $u }
echo "To quote Annette Hanshaw: That's all"