cdfcatf −− concatenate to the end of one cdf file the variable section(s) of zero or more other cdf files.
cdfcatf firstfile [file1 [file2...]] > outputfile
Where firstfile is the file which remains intact and preceeds all other data, [file1 [file2...]] are the files whose variable slices will be added to the end of the first file, and outputfile is the file created.
Opens all input files from the command line. Copies firstfile intact to stdout saving the header information, then for each other input file it checks to see that both the static and variable formats of the new file agree with those of firstfile, and writes their variable slices to stdout. It dies with a message if any of the files has incompatible data formats.
If variable slice fields are in different orders in different files, cdfcatf doesn’t catch this error, with unpleasant results.