Variable naming

On to the subject of naming. You might have noticed something about the variables we've seen up to now: the Bash variables PATH and BASH_VERSION are written fully uppercase, but in our examples we used lowercase, with words separated by an underscore (hello_text). Consider the following example:

#!/bin/bash

#####################################
# Author: Sebastiaan Tammer
# Version: v1.0.0
# Date: 2018-09-08
# Description: Showing off different styles of variable naming.
# Usage: ./variable-naming.sh
#####################################

# Assign the variables.
name="Sebastiaan"
home_type="house"
LOCATION="Utrecht"
_partner_name="Sanne"
animalTypes="gecko and hamster"

# Print the story.
echo "${name} lives in a ${home_type} in ${LOCATION}, together with ${_partner_name} and their two pets: a ${animalTypes}."

 

 

 

 

If we run this, we get a nice little story:

reader@ubuntu:~/scripts/chapter_08$ bash variable-naming.sh 
Sebastiaan lives in a house in Utrecht, together with Sanne...