If you run count.pl --help
you will see a brief listing of all the command line arguments. More detailed explanations are available here: http://search.cpan.org/dist/Text-NSP/ You can also find a paper that discusses many of the features of NSP here... @inproceedings{BanerjeeP03, author = {Banerjee, S. and Pedersen, T.}, title = {The Design, Implementation, and Use of the {N}gram {S}tatistic {P}ackage}, booktitle = {Proceedings of the Fourth International Conference on Intelligent Text Processing and Computational Linguistics}, pages = {370-381}, year = {2003}, month ={February}, address = {Mexico City}} http://www.d.umn.edu/~tpederse/Pubs/cicling2003-2.pdf And yes, they are also defined in the source code via perldoc, so you can run perldoc count.pl to find a very detailed explanation of the options... Good luck! Ted On Fri, Feb 6, 2009 at 1:31 AM, reshmijose <reshmij...@yahoo.com> wrote: > can you tell me how command line arguments like 'count.pl output.txt > input.txt' are defined? Are they defined within the source code? > > What should i do if i want to run the program count.pl separately? > > -- Ted Pedersen http://www.d.umn.edu/~tpederse