Bash functions, unlike functions in most programming languages do not allow you to return a value to the caller. When a bash function ends its return value is its status: zero for success, non-zero ...

An example of a function in a program is a sum function. Here’s a simple implementation: define a function named sum that takes two arguments. Call it using variables a and b: int a = 5; int b ...

This is how variables work in programming. A variable is a label (usually a word) that can be substituted for a piece of data. This then allows us to ferry information around our app by getting ...