This repository contains sample code for the fd io introduction lab.

The primary learning objectives for this lab are developing comptency with

• POSIX syscalls related to file access, as exposed in python
• development and execution of python programs in a POSIX command line environment.

In the repository are two plain text files with lots of words. Your assignment is to create a python program which:

• only use os system calls to read and write (see io.py demo in ch2 directory of [https://github.com/robustUTEP/os-demos])
• takes as input the name of an input file and output file
• example

$ python wordCount.py input.txt output.txt

• keeps track of the total the number of times each word occurs in the text file
• excluding white space and punctuation
• is case-insensitive
• print out to the output file (overwriting if it exists) the list of words sorted in descending order with their respective totals separated by a space, one word per line

We encourage you to utilize the re regular expression library and python dictionaries in your program.