task.md

Day 7: Shell Scripting

Task: Write an automation script

1. Create a script (backup.sh) that:

   • Takes a directory as an argument
   • Creates a timestamped backup in /tmp

2. Example script:

   Click to view Hint !!

   #!/bin/bash
   backup_dir=$1
   timestamp=$(date +%Y%m%d_%H%M%S)
   backup_file="/tmp/backup_$timestamp.tar.gz"
   
   if [[ ! -d "$backup_dir" ]]; then
       printf "Error: Directory does not exist\n" >&2
       exit 1
   fi
   
   tar -czf "$backup_file" "$backup_dir"
   printf "Backup created at %s\n" "$backup_file"

3. Make it executable and run it:

   Click to view Hint !!

   chmod +x backup.sh
   ./backup.sh ~/Documents

4. Bonus: Schedule it in a cron job to run every night at 2 AM.

Tip

Use Hint section whenever stuck, google the command and go through its usage and functionality.