Systems Programming - getdiskusage - case study

Script utility that allows developers to debug disk space for a directory.

Description

Write a program in a language of your choice which will take a mount point as an argument and return a list of all the files on the mountpoint and their disk usage in bytes in json format.

Getting Started

Dependencies

Python
- Operating system that allows python to be installed and executed
- Python command reachable from terminal / command line
- Python minimum versions 2.7 or 3.2 compatible
- See https://www.python.org/downloads/ for install instructions

Optional

Git command line
- https://git-scm.com/book/en/v2/Getting-Started-Installing-Git
- Windows option: https://gitforwindows.org/

Installing

Download Zip Method
- Download https://github.com/jzukauska/Systems_Programming/archive/master.zip
- Extract to your preferred folder
- Navigate to that folder

Git Method

open terminal or command line

git clone https://github.com/jzukauska/Systems_Programming.git

```
cd Systems_Programming
```

Executing program

Ensure command line or terminal is open in directory that getdiskusage.py is available

python getdiskusage.py /insert/directory/here

Other options include

python getdiskusage.py ./currentWorkingDirectory

python getdiskusage.py ../relativeParentDirectory

Help

You can run python getdiskusage.py -h for a reminder

python getdiskusage.py -h:

usage: getdiskusage.py [-h] path

Find file sizes and output json from path

positional arguments:
  path        Path of directory to get files

optional arguments:
  -h, --help  show this help message and exit

Test

Test can be run with
```
python test_getdiskusage.py
```
It requires that the test directory shipped with this repository be in the same directory you extracted getdiskusage.py to in order to test known relative directory schemas.

Author

Jacob Zukauska