it-knowledge/src/solutions/shell-scripting.md

Shell Scripting Solutions [📜]

This section documents my solutions to shell scripting scenarios, including automation, monitoring, and system management scripts.

Scenario Tags

Tag	Description
[v1-S6]	Shell Scripting - Practice Scenarios v1
[v2-S6]	Automation Script - Practice Scenarios v2
[v3-S6]	System Automation - Practice Scenarios v3

Scenario: [v1-S6] Shell Scripting

Original Problem

From Practice Scenarios v1, Scenario 6: Create a script that:

1. Accepts a directory path as an argument
2. Finds all files larger than 100MB
3. Creates a report of these files including size and last modified date
4. Archives files older than 30 days into a tar.gz file
5. Logs all actions to /var/log/cleanup.log

Environment

• OS Version: [To be filled]
• Initial State: [To be filled]
• Required Outcome: [To be filled]

Solution Steps

[Your solution will be added here]

Scenario: [v2-S6] Automation Script

Original Problem

From Practice Scenarios v2, Scenario 6: Create a script that:

1. Monitors disk space usage
2. Sends alerts when filesystems exceed 80% usage
3. Automatically cleans up /tmp older than 7 days
4. Generates daily system health report
5. Uses getopts for command line options

Environment

• OS Version: [To be filled]
• Initial State: [To be filled]
• Required Outcome: [To be filled]

Solution Steps

[Your solution will be added here]

Scenario: [v3-S6] System Automation

Original Problem

From Practice Scenarios v3, Scenario 6: Create scripts for:

1. System inventory script that:
   • Lists all installed packages
   • Shows disk usage
   • Reports running services
   • Checks SELinux status
2. Backup script that:
   • Uses tar with incremental backups
   • Implements retention policy
   • Verifies backup integrity
   • Logs all operations

Environment

• OS Version: [To be filled]
• Initial State: [To be filled]
• Required Outcome: [To be filled]

Solution Steps

[Your solution will be added here]