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    Very good answer although it would be much better if it were broken into functions. Commented Sep 30, 2016 at 11:40
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    Maybe add that functions allow you to import that script into another script (by using source or . scriptname.sh, and use those functions as-if they were in your new script. Commented Sep 30, 2016 at 21:37
  • That's already covered in another answer. Commented Sep 30, 2016 at 21:40
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    I appreciate that. But I'd rather let other people be important as well. Commented Sep 30, 2016 at 22:00
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    I faced a case today where I had to redirect some of the output of a script to a file (to sent it via email) instead of echoing. I simply had to do myFunction >> myFile to redirect the output of the desired functions. Pretty convenient. Might be relevant. Commented Sep 30, 2016 at 23:28