.-ON--.   
>>-CONFIRM--+-OFF-+--------------------------------------------><

You can use these operands with the CONFIRM command:

ON

Tells ISPF to display the Confirm Delete panel when you enter the D (delete data set) line command or TSO DELETE command. This is the default setting.

OFF

Tells ISPF not to display the Confirm Delete panel.

For example, this command would tell ISPF not to display the Confirm Delete panel:

CONFIRM OFF