On this occasion, you have some plain text files, and you want to know what is said in them. You don't want to read them, so you decide to count the times that the words appear in the text, and see the most frequent ones to get an idea of what the files are about. The first of our two tutorials on filtering is about counting the words in the file.
Before starting, you'll need at least one text file to play with. The text file used in this tutorial is named
smcng10.txt, and is available for you to download from Packt Publishing's website, www.packtpub.com.
This section and the following sections have many steps. So, feel free to preview the data from time-to-time. In this way, ...