[Great use of Bash scripting to do a maths puzzle, but demonstrating lots of useful features.](http://penguinpetes.com/b2evo/index.php?title=using_bash_to_solve_a_brain_teaser&more=1&c=1&tb=1&pb=1)

[Great use of Bash scripting to do a maths puzzle, but demonstrating lots of useful features.](http://penguinpetes.com/b2evo/index.php?title=using_bash_to_solve_a_brain_teaser&more=1&c=1&tb=1&pb=1)

[Great use of Bash scripting to do a maths puzzle, but demonstrating lots of useful features.](http://penguinpetes.com/b2evo/index.php?title=using_bash_to_solve_a_brain_teaser&more=1&c=1&tb=1&pb=1)