1 /CONFIRM
/CONFIRM /NOCONFIRM (default) Prompt for positive confirmation before carrying out the indicated operation. /NOCONFIRM is the default behavior.
2 /LOG
/LOG /NOLOG (default) When the operation is successful, output a status message stating that the operation succeeded. Note that error messages are always indicated. /NOLOG is the default behavior.
3 /PROMPT
/PROMPT (default) /NOPROMPT By default if a wildcard is used, even if /NOCONFIRM is specified, one confirmation prompt is issued. If /NOPROMPT is specified, there is no prompting at all.