"One issue people run into when learning how to shell script well is duplicating work they've already done in a script. Rather than copying their work and changing a couple of hard-coded values, they could simply create a function to handle the work for both areas of the script. Creating centralized functions also standardizes and provides for a uniform script. If a function works in one area of the script, it's a safe bet it will work elsewhere in the script, as well."
