ncvalidator - validates a classic netCDF file against CDF file formats
ncvalidator [-x] [-t] [-q] [-h] file
ncvalidator checks the header of a netCDF file for whether it conforms
the classic CDF file formats. If the input file is a valid NetCDF file, then a
message of successful validation is printed on command-line output, for
example, File "testfile.nc" is a valid NetCDF file. Otherwise, a
NetCDF error message is printed.
An exit status of 0 means the file is conform with the classic CDF file format,
and 1 means otherwise. Note on VMS-based system, the exit status values are
- Repair the null-byte padding in file header. The null-byte padding is
required by the NetCDF Classic Format Specifications. PnetCDF enforces
this requirement, but NetCDF has never enforced it. This option checks the
header for locations where null bytes are expected and replaces them with
null bytes if non-null bytes are found. The repaired file is then
conformed with the specification and allows both PnetCDF and NetCDF
libraries to read the file without reporting error code NC_ENOTNC or
NC_ENULLPAD. Noted that this repair is done in place and users might want
to backup the input file first. Once the file is repaired, one may run
ncmpidiff command to compare the contents of two files.
- Turn on tracing mode, printing the progress of all successful metadata
validation. When an error is detected, the tracing stops at the location
of the error found.
- Quiet mode - print nothing on the command-line output. When in quiet mode,
users should check exit status. See below in "EXIT STATUS".
- Print the available command-line options