✅ WEEK 9: BASH SCRIPTING – COMPLETE SOLUTIONS

#!/bin/bash echo "Welcome to Bash Scripting!"

#!/bin/bash echo "Enter your name:" read name echo "Hello $name, welcome to Linux!"

#!/bin/bash date

#!/bin/bash course="Network Applications" week=9 echo "Course: $course" echo "Week: $week"

#!/bin/bash echo "Enter your age:" read age if [ $age -ge 18 ] then echo "You are eligible to vote." else echo "You are not eligible to vote." fi

#!/bin/bash echo "Enter filename:" read file if [ -f "$file" ] then echo "File exists." else echo "File does not exist." fi

#!/bin/bash echo "Log created on:" > system.log date >> system.log whoami >> system.log

#!/bin/bash for i in {1..5} do echo "Number: $i" done

#!/bin/bash echo "1. Show Date" echo "2. Show User" read choice case $choice in 1) date ;; 2) whoami ;; *) echo "Invalid option" ;; esac

#!/bin/bash backup_dir="backup" mkdir -p $backup_dir cp *.txt $backup_dir echo "Backup completed successfully."

#!/bin/bash usage=$(df / | awk 'NR==2 {print $5}' | sed 's/%//') if [ $usage -gt 80 ] then echo "Warning: Disk usage above 80%" else echo "Disk usage is normal" fi