These programs follow the usual GNU command line syntax, with long options starting with two dashes
(`-'). A summary of options is included below.
-h Shows a summary of the available options.
-ggrp,--group=grp
Prints information for this group. The default group is the root group. Nested groups are
specified using posix paths e.g. group1/group2/group3.
-v<variablename>,--variable=<variablename>
Prints information for this variable.
-d<dimensionname>,--dimension=<dimensionname>
Prints information for this dimension.
The filename of the netCDF file must be supplied as the last argument.