After you're retrieved, configured, and built the NCBI C++ Toolkit (see http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=toolkit&part=ch_start#ch_start.quick_start), run the sample application in Chapter 8: http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=toolkit&part=ch_core#ch_core.creating_unix_app

Hints for sample app:
- do the instructions for Unix systems
- the script is in /ncbi_xxx.../scripts/common
- run the script with command-line arguments that will be reprinted to standard out to indicate proper completion, ie. ./sample -k asd123 foo