-verbose

Syntax	-verbose <option>
Description	Activates the output of error information to StdErr. The options are: 0 - deactivated 1- An error code is sent to StdErr. The client application can interpret and take actions based on this error code. 2- As option 1 but an error message text is also displayed.
Comment	Optional. The default value is 0, but if you specify -verbose without option, the default option is 1.
Example	-verbose 2