Options for working with netcdf-formatted files from the command line or with an external program.
The ncdump command reads a netCDF file and outputs text in a format called CDL. The ncgen command reads a text file in CDL format, and generates a netCDF data file. The nccopy command copies a netCDF file from one binary format to another, optionally changing compression and chunksize settings.
The utility ncdump can be used to show the contents of netCDF files. By default, ncdump shows the CDL description of the file. This CDL description can be fed into ncgen to create the data file.
See also: ncdump
The ncgen utility can take an ASCII input file, in CDL format, and generate a binary netCDF file. It is the opposite of ncdump.
The nccopy utility can copy a netCDF file, changing binary format, chunk sizes, compression, and other storage settings.
See also: nccopy
Many existing 3rd-party software applications can read and manipulate netCDF files. Before writing your own program, check to see if any existing programs meet your needs.
Three utilities come with the netCDF distribution: ncdump, ncgen, and nccopy. (See The NetCDF Utilities).
The following general-purpose tools have been found to be useful in many situations. Some of the tools on this list are developed at Unidata. The others are developed elsewhere, and we can make no guarantees about their continued availability or success. All of these tools are open-source.
A list of netCDF tools that we know about can be found on the website. If you know of any that should be added to this list, send email to firstname.lastname@example.org@m.etcdf.nosp@m.@email@example.com..firstname.lastname@example.org@m..edu.