Подключение сетевого диска

@ECHO OFF

IF NOT EXIST O:\nul (

   NET USE O: \\servername_or_ip\path /user:%username% %password% /persistent:no

   ECHO ERRORLEVEL = %ERRORLEVEL%

   ECHO Disk O: connected sucsessfully!

) ELSE (

   ECHO Disk O: already connected!

)

:END