Run Remote powershell and delete shadows on all machines

deleteshadows.ps1

$nodes = @("nim-win1-4.asvigneshad.local","nim-win2-5.asvigneshad.local","nim-win3-3.asvigneshad.local","nim-win4-1.asvigneshad.local","nim-win5-5.asvigneshad.local")
$username = "asvigneshad\administrator"
$password = "Password"
$secstr = New-Object -TypeName System.Security.SecureString
$password.ToCharArray() | ForEach-Object {$secstr.AppendChar($_)}
$cred = new-object -typename System.Management.Automation.PSCredential -argumentlist $username, $secstr
For ($i=0; $i -lt $nodes.Length; $i++) {
    $sess = New-PSSession -Credential $cred -ComputerName $nodes[$i]
    Enter-PSSession $sess
    $script = "./tmp.dsh"
    "delete shadows all" | Set-Content $script
    diskshadow /s $script
    Remove-Item $script
    Exit-PSSession
    Remove-PSSession $sess
}