ccwc tool

Table of contents

• System Requirements
• Project Structure
• Use of the Tool
• Tool Testing

System Requirements

The ccwc tool has been build in Python, version 3.10.12.

There are two external libraries used, sys (system) and unittest.

Project Structure

.
├── ccwc.py                  - the file contains methods used to measure input content.
├── main.py                  - the tool main entry.
├── process.py               - methods used to process command arguments.
├── test.txt                 - the file used in ccwc tool assessment.
└── test_ccwc.py             - tests applied in ccwc tool assessment.

Use of the Tool

The tool takes a file or a pipe as an input and outputs file measurements according the chosen option.

The tool tries to follow wc syntax, thus its application is as follows:

python3 main.py ccwc [option] filename

There are five options supported:

• generic: without an option, outputs the number of lines, words and bytes in a file.
• -c: outputs the number of bytes in a file.
• -l: outputs the number of lines in a file.
• -w: outputs the number of words in a file.
• -m: outputs the number of chars in a file.

The tool also supports a combination of std_out input, where the ccwc options are as given above, in the form:

cat filename | python3 main.py ccwc [option]

Tool Testing

The test file can be run from the command line:

python3 -m unittest test_ccwc.py