PowerShell Create Folder on Remote Server

The following script does not add a folder to my remote server. Instead it places the folder on My machine! Why does it do it? What is the proper syntax to make it add it?

$setupFolder = "c:\SetupSoftwareAndFiles"

$stageSrvrs | ForEach-Object {
  Write-Host "Opening Session on $_"
  Enter-PSSession $_

  Write-Host "Creating SetupSoftwar开发者_StackOverflow社区eAndFiles Folder"

  New-Item -Path $setupFolder -type directory -Force 

  Write-Host "Exiting Session"

  Exit-PSSession

}

Enter-PSSession can be used only in interactive remoting scenario. You cannot use it as a part of a script block. Instead, use Invoke-Command:

$stageSvrs | %{
         Invoke-Command -ComputerName $_ -ScriptBlock { 
             $setupFolder = "c:\SetupSoftwareAndFiles"
             Write-Host "Creating SetupSoftwareAndFiles Folder"
             New-Item -Path $setupFolder -type directory -Force 
             Write-Host "Folder creation complete"
         }
}

UNC path works as well with New-Item

$ComputerName = "fooComputer"
$DriveLetter = "D"
$Path = "fooPath"
New-Item -Path \\$ComputerName\$DriveLetter$\$Path -type directory -Force 

For those who -ScriptBlock doesn't work, you can use this:

$c = Get-Credential -Credential 
$s = $ExecutionContext.InvokeCommand.NewScriptBlock("mkdir c:\NewDir")
Invoke-Command -ComputerName PC01 -ScriptBlock $s -Credential $c

The following code will create a new folder on a remote server using server name specified in $server. The below code assumes credentials are stored in MySecureCredentials and setup beforehand. Simply call createNewRemoteFolder "<Destination-Path>" to create the new folder.

function createNewRemoteFolder($newFolderPath) {

    $scriptStr = "New-Item -Path $newFolderPath -type directory -Force"
    $scriptBlock = [scriptblock]::Create($scriptStr)

    runScriptBlock $scriptBlock
}


function runScriptBlock($scriptBlock) {

    Invoke-Command -ComputerName $server -Credential $MySecureCreds -ScriptBlock $scriptBlock
}

$Servers=Get-SPServer |?{ $_.Role -notlike "Invalid"}

foreach($Server in $Servers)
{
    $Machine=$Server.Address
    $Path= "SP Logs"
    $NewFolder="Trace2"
    $DL= "E"
    #Write-Host "Server name is = " $Server
    New-Item -Path \\$Machine\E$\$Path\$NewFolder -Force -ItemType Directory
}

If you need to provide a folder name from the client, @Freddie has given clever answer. But I find more easy to do following:

$cred = Get-Credential
$session = New-PSSession -ComputerName $server -Credential $credInvoke- 
Command -Session $session -ScriptBlock { param ($folder) New-Item -Path $folder -ItemType Directory } -ArgumentList @("C:\temp\my_new_folder")