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Aug 20th, 2019
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  1. #!/bin/sh
  2.  
  3. ask_if_continue () {
  4. while true; do
  5. # Prompt
  6. echo "Continue? (y/N)"
  7. read yesno
  8.  
  9. # To lower case.
  10. yesno=`echo $yesno | tr [A-Z] [a-z]`
  11.  
  12. # Break on valid only.
  13. if [ "$yesno" = "y" ]; then
  14. # It's yes.
  15. echo "Yes"
  16. break
  17. elif [ "$yesno" = "n" ]; then
  18. # It's no.
  19. echo "No"
  20. return
  21. fi
  22. done
  23. }
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