delete Delete file or graphics object.
delete file_name deletes the named file from disk. Wildcards
may be used. For example, delete *.p deletes all P-files from the
Use the functional form of DELETE, such as delete(‘file’) when the
file name is stored in a string.
delete(H) deletes the graphics object with handle H. If the object
is a window, the window is closed and deleted without confirmation.