NAME

       x2sys_datalist - A generic data-extractor ascii or binary files


SYNOPSIS

       x2sys_datalist  file(s)  [  -Ddeffile  ] [ -Fname1,name2,... ] [ -H ] [
       -M[flag] ] [ -Rwest/east/south/north ] [ -V ] [ -bo[s][n] ]


DESCRIPTION

       x2sys_datalist reads one or  more  files  and  produces  an  ASCII  [or
       binary] table.  The files can be of any format, which must be descriped
       and passed with the -D option. You may limit the output to a geographic
       region, and insist that the output from several files be separated by a
       multiple segment header.  Only the named data  fields  will  be  output
       [Default is all columns].

       files  Can be one or more binary or ASCII data files. To give a list of
              names, use ‘cat list_of_files‘.


OPTIONS

       No space between the option flag and the associated arguments

       -D     Definition file for this data set. [x2sys.def]

       -F     Give a comma-separated list of column names as  defined  in  the
              definition file. [Default is all data columns].

       -H     Input file(s) has Header record(s). Number of header records can
              be changed by editing  your  .gmtdefaults  file.  If  used,  GMT
              default is 1 header record.

       -V     Selects verbose mode, which will send progress reports to stderr
              [Default runs "silently"].

       -bo    Selects binary output. Append s for single precision [Default is
              double].


EXAMPLES

       To extract all data from the old-style GMT MGG file c2104.gmt, try:

       x2sys_datalist c2104.gmt -Dgmt > myfile

       To  make  x,y,topo  input for blockmean and surface using all the files
       listed in the file tracks.lis, but only the data that  are  inside  the
       specified area, and make output binary, try:

       x2sys_datalist  ‘cat  tracks.lis‘ -Fx,y,topo -R-40/-30/25/35 -bo > all-
       topo.xyz


SEE ALSO

       blockmean(GMTMANSECTION),  gmt(GMTMANSECTION),  surface(GMTMANSECTION),
       x2sys_cross(GMTMANSECTION)



                                  1 Jan 2004                 X2SYS_DATALIST(l)

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