Learn Linux Shell Scripting - Fundamentals of Bash 4.4

Parameters and arguments

We need to take a small step back and discuss some terminology—parameters and arguments. It's not terribly complicated, but it can be a bit confusing, and they are sometimes used incorrectly.

Basically, an argument is something you pass to a script. What you define in the script is considered the parameter. Look at the following example to see how this works:

reader@ubuntu:~/scripts/chapter_08$ vim arguments-parameters.shreader@ubuntu:~/scripts/chapter_08$ cat arguments-parameters.sh #!/bin/bash###################################### Author: Sebastiaan Tammer# Version: v1.0.0# Date: 2018-09-08# Description: Explaining the difference between argument and parameter.# Usage: ./arguments-parameters.sh <argument1> <argument2> ...