PS: Dateien bzw. Ordnerinhalt löschen

:: FTP Download
set "s-sv=server"  
set "s-us=user"  
set "s-pw=passwort"  
powershell.exe -EP ByPass -Command "$client = new-object System.Net.WebClient; $client.Credentials = New-Object System.Net.NetworkCredential '%s-us%','%s-pw%';$client.DownloadFile('ftp://%s-us%@%s-sv%/verzeichnis/1001.csv','1001.csv')"  

:: FTP leeren
set "s-sv=server"  
set "s-us=user"  
set "s-pw=passwort"  
powershell.exe -EP ByPass -Command "$client = new-object System.Net.WebClient; $client.Credentials = New-Object System.Net.NetworkCredential '%s-us%','%s-pw%';$Remove-Item('ftp://%s-us%@%s-sv%/verzeichnis/*.*','*.*')"  

In Zeile:1 Zeichen:143
+ ... .NetworkCredential 's-pw','s-us';$Remove-Item('ftp:// ...  
+                                                             ~~~~~
Unerwartetes Token "-Item" in Ausdruck oder Anweisung.  
In Zeile:1 Zeichen:148
+ ... NetworkCredential  's-pw','s-us';$Remove-Item('ftp://f ...  
+                                                                 ~
Unerwartetes Token "(" in Ausdruck oder Anweisung.  
    + CategoryInfo          : ParserError: (:) , ParentContainsErrorRecordException
    + FullyQualifiedErrorId : UnexpectedToken