Main Menu....
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      1. lsblk           - List attached drives
      2. df -h           - Show disk space used
      3. Update          - Update kali repositories
      4. Upgrade         - Upgrade kali and bring up-to-date
      5. Screen Size Def - Reset screen size to default 
      6. Screen Size x 2 - Reset Screen size to scale x 2
      7. Screen Size x 3 - Reset Screen size to scale x 3
      8. Screen Size x 4 - Reset screen size to scale x 4
      0. Exit
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