Powershell update script for multiple git repositories

update-coapp.ps1

$git = $env:programfiles+"\Git\cmd\git.cmd";
if (!$git) {
  Write-Host "Something went wrong. 
    Please enter the path to git.cmd or git.exe:";
  $git = Read-Host;
  Set-Variable -Name git -Value $git;
}
ls -name -Exclude *.* | foreach {cd .\$_ ; .$git pull origin master ; cd ..}
Write-Host "Done.";