Go to NEB/examples/example01 and execute:
./run_exampleThis will create a subdirectory results/ containing the input and output files generated by the calculation.
The reference/ subdirectory contains verified output files, that you can check your results against. The exact numbers depend upon the hardware, software stack, execution mode: tiny differences are not a problem, but a plain diff of your results against the reference data doesn't work, or at least, it requires human inspection.