Log Analysis & Reporting System

Overview

This project is a bash-based log analysis and reporting system designed to help users efficiently archive, analyze, and summarize logs from various devices.

The system automates the workflow in three main steps:

1. Archiving logs – Safely move processed logs to an archive.
2. Analysis – Count occurrences of devices, and record timestamps of first and last entries.
3. Reporting – Append results to a centralized report file for record-keeping.

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Project Structure

project/ │ ├── logs/ # Active log files to be analyzed │ ├── heart_rate.log │ ├── temperature.log │ └── water_usage.log │ ├── archive/ # Archived logs │ ├── reports/ # Analysis reports │ └── analysis_report.txt │ ├── archive_logs.sh # Script for archiving logs ├── analyze_logs.sh # Script for analyzing logs and generating reports └── README.md # Project documentation

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Workflow Summary

1 Archiving Logs (archive_logs.sh)

Purpose:

• Moves selected logs from logs/ to archive/.
• Ensures safe storage and avoids clutter in the active log folder.

Features:

• Interactive menu for selecting logs to archive.
• Renames archived logs to avoid overwriting.
• Supports multiple log archiving in a loop.

Example Run:

./archive_logs.sh

Select log to archive:
1) Heart Rate
2) Temperature
3) Water Usage
Enter choice (1-3): 2
Temperature log archived successfully to archive/temperature_2025-10-09.log

*** 2. Analyzing Logs (analyze_logs.sh)

Purpose:
1. Counts the number of occurrences for each device in a log file.
2. Records timestamps of first and last entries.
3. Appends the results to reports/analysis_report.txt.
Example Log Line:
[2025-10-09 12:34:56] DeviceA - Sample log message

Analysis Output Example:
Device          Count      First Entry               Last Entry
------          -----      -----------               -----------
DeviceA         15         2025-10-09 12:00:01       2025-10-09 14:42:33
DeviceB         9          2025-10-09 12:03:22       2025-10-09 13:51:20

3️. Reporting

All analysis results are appended to reports/analysis_report.txt.
Maintains historical records of device activity and log insights.
View the report:
cat reports/analysis_report.txt

Script Overview
Script	Function
archive_logs.sh	Interactive script for moving selected logs to archive.
analyze_logs.sh	Counts device occurrences and timestamps; appends results to report.

Workflow Summary
Logs are written into logs/ by devices or manually.
Use archive_logs.sh to archive old logs.
Run analyze_logs.sh to extract insights.

Check ``reports/analysis_report.txt`` for the summary report.

Requirements
Linux or macOS terminal (Windows users can use WSL).
Bash and standard Unix utilities (awk, mv, etc.).

How to Run
Archive a log:
./archive_logs.sh

Analyze a log:
./analyze_logs.sh

Check the report:
cat reports/analysis_report.txt