1.Dd June 30, 2010 2.Dt AT-INVALID 1 3.Os 4.Sh NAME 5.Nm At-invalid 6.Nd handling of an invalid AT&T UNIX argument 7.Sh DESCRIPTION 8no argument: 9.At 10.Pp 11valid argument: 12.At v7 13.Pp 14invalid argument: 15.At murks 16.Pp 17end of file 18