q  shp shapefile 
Lists the contents of a shapefile. 
   This command is available with GrADS version 2.0.a8 or later.  If you put the three shapefile components  (*.shp, *.shx, and *.dbf) in the GrADS data directory (pointed to by the GADDIR environment variable), then it is not necessary to include the full path in  The first line of output contains the shapefile type, the number of shapes in the file, and the X and Y bounds of actual extent of the shapes in the file. Subsequent lines list information about each shape element in the file: the identification number, the shape type, the number of parts, the number of vertices, and the bounds of the shape in the X, Y, Z, and M (measure) dimesions. The current GrADS interface ignores the Z or M values of a shape, only it's position in X,Y (lon,lat) space is relevant.  A companion command,  Please see the documentation page on shapefiles for more details.   shapefile is the name of the shapefile. It is not necessary to include the file extension (.shp) on the end of shapefile, just the filename root is adequate.
  
Usage Notes
shapefile. q dbf, lists the attribute database entries for each element in the shapefile. There is a 1:1 correspondence between elements in the shapefile and records in the database. Examples 
ga-> q shp /home/GIS/climatedivs/divisions
Shapefile Type=Polygon #Shapes=387 XBounds=-124.761:-66.95 YBounds=24.545:49.385
0:  Polygon  parts=1  vertices=51  XBounds=-95.602:-93.056  YBounds=46.285:49.385  ZBounds=0:0  MBounds=0:0
1:  Polygon  parts=1  vertices=88  XBounds=-123.081:-121.919  YBounds=46.621:49.002  ZBounds=0:0  MBounds=0:0
2:  Polygon  parts=1  vertices=135  XBounds=-123.773:-121.207  YBounds=45.548:49.002  ZBounds=0:0  MBounds=0:0 
3:  Polygon  parts=1  vertices=91  XBounds=-121.611:-119.484  YBounds=45.681:49.001  ZBounds=0:0  MBounds=0:0 
4:  Polygon  parts=1  vertices=36  XBounds=-120.46:-117.558  YBounds=47.149:49.001  ZBounds=0:0  MBounds=0:0 
5:  Polygon  parts=1  vertices=25  XBounds=-117.041:-116.048  YBounds=47.006:49.001  ZBounds=0:0  MBounds=0:0
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385:  Polygon  parts=1  vertices=46  XBounds=-122.513:-121.659  YBounds=43.551:45.647  ZBounds=0:0  MBounds=0:0
386:  Polygon  parts=1  vertices=67  XBounds=-121.946:-118.222  YBounds=44.771:46.001  ZBounds=0:0  MBounds=0:0