Bash Script Fundamentals Lab

In this hands-on lab, you'll learn bash scripting fundamentals by building 5 real-world utility scripts that platform engineers use daily. You'll master variables, input/output, command substitution, and basic script structure.

You'll write scripts for file backup, log rotation, system information gathering, disk space monitoring, and automated cleanup. Each script teaches essential bash concepts while solving actual problems you'll encounter as a platform engineer.

By the end of this lab, you'll understand:

• Bash script structure (shebang, comments, execution)
• Variables and command substitution ($(), ${})
• User input with read command
• echo and printf for output
• Basic file operations in bash
• Script execution permissions (chmod +x)
• exit codes and return values
• Practical scripting patterns