How to Concatenate Strings in Bash Scripting

Example 1: using +=

#!/bin/bash

website_name="Code2care"
website_name+=" - Lines of code for Change."

concatenated_str="$website_name$website_tag_line"
echo "$concatenated_str"

Output:
Code2care - Lines of code for Change.

Example 2: using ${variable}

#!/bin/bash

website_name='Code2care'
website_tagline='Lines of code for Change.'

concatenated_str="${website_name} - ${website_tagline}"
echo "$concatenated_str"

This approach is much cleaner!