r                                :job option (s,r)1  25                            :first, last shot for sort1  10                            :first, last trace OR first last receiver10.  25.   35.  50.              :frequency spectrum of wavelet.150                             :wavelet length (secs).004                             :sample rate (secs)2.                               :record length (secs)demo12shot                       :input filenamedemo12traces                     :output filename