Open Source Software Audit – Capstone Project

Student Details

Field	Value
Name	Palak Choithani
Registration Number	24BCE10567
Course	Open Source Software (NGMC)
Date	March 26, 2026

Chosen Software

Firefox – Open source web browser by Mozilla

Scripts

File	Purpose
script1.sh	System Identity Report
script2.sh	FOSS Package Inspector
script3.sh	Disk and Permission Auditor
script4.sh	Log File Analyzer
script5.sh	Open Source Manifesto Generator

How to Run

Make all scripts executable

chmod +x script1.sh script2.sh script3.sh script4.sh script5.sh

Run System Identity Report

./script1.sh

Works on Linux and macOS (auto-detects OS details and uptime format).

Run Package Inspector

./script2.sh

Checks package status with rpm/dpkg on Linux and falls back to command-path detection on non-Linux systems.

Run Disk and Permission Auditor

./script3.sh

Run Log Analyzer

./script4.sh

By default, script4.sh auto-detects a logfile from:

• /var/log/syslog
• /var/log/messages
• /var/log/system.log

You can also pass explicit arguments:

• Linux example: ./script4.sh /var/log/syslog error
• macOS example: ./script4.sh /var/log/system.log error

Run Manifesto Generator

./script5.sh

SCRIPT IMPLEMENTATION SUMMARY

Script 1: Captures system identity including OS, kernel, uptime, and user environment. Also demonstrates system-level open source licensing context (GPL).

Script 2: Inspects Firefox installation status, retrieves version and package metadata, and explains MPL 2.0 licensing along with the four freedoms.

Script 3: Audits important filesystem directories, showing ownership, permissions, disk usage, and verifies Firefox user configuration directory.

Script 4: Performs keyword-based log analysis across system logs, demonstrating system monitoring even though Firefox logs are primarily user-scoped.

Script 5: Generates a personalized open source manifesto, linking practical scripting with open source philosophy and ethics.

Note: While Script 1 displays a generic GPL license as part of system-level OSS context, Firefox itself is licensed under MPL 2.0 as discussed in Part A.

Sample Output

Script 1 Sample Output

Hostname: ubuntu
Kernel Version: 5.15.0

Script 3 Sample Output

DIRECTORY            OWNER:GROUP          PERMS        SIZE
/etc                 root:root            drwxr-xr-x   12M

Script 4 Sample Output

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