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Where clause. Messages are processed only if they match all the key/value constraints. A valid constraint is of type key=value or key!=value. For each key a string (key:s), a double (key:d) or an integer (key:i) type can be specified.
Default type is string.
In the value you can also use the forward-slash character '/' to specify an OR condition (i.e. a logical disjunction)
Note: only one -w clause is allowed.
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Order by. The output will be ordered according to the 'order by' directive.
Example: "step:i asc, centre desc" (step numeric ascending and centre descending)
Default sort mode is 'asc'
-l Latitudelatitude,Longitudelongitude[,MODE,file]
Value close to the point of a Latitude/Longitude. latitude/longitude (nearest neighbour).
Allowed values for MODE are:
4 4 (4 values in the nearest points are printed) Default
1 1 (the value at the nearest point is printed)
file (file is used as mask. The closer point with mask value>=0.5 is printed)
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Multi-field support off. Turn off support for multiple fields in single a single GRIB message.
-g
Copy GTS header.
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