The only utilities that are part of the Unidata netCDF package are ncdump and ncgen. The ncdump and ncgen utilities can be used to avoid writing programs for some kinds of simple data management tasks, or to generate simple netCDF programs in C and Fortran.
NCO (NetCDF Operators) is a package of programs that take netCDF files as input and produce netCDF files as output. Use of NCO interactively and in simple scripts can often accomplish tasks that would otherwise require programming.
Although NCO programs are general enough to handle arbitrary netCDF files, similar packages exist for more specific kinds of data. For example the CDO (Climate Data Operators) package is for manipulating and analyzing climate model data in several formats, including GRIB and netCDF.
The ncdump command-line utility converts netCDF data to a human-readable text form.
The ncgen utility can generate a netCDF file, a C program, or a Fortran program from a human-readable (and editable) CDL file.
The NCO (NetCDF Operators) provide command-line and scriptable programs for common generic operations on netCDF files.
Other NetCDF Utilities
Many other useful netCDF utilities have been developed and are freely available.