How does variables in bash differ between distributions?

In bash scripting, variables are a crucial component used for storing data, but their behavior and usage can vary slightly between different Linux distributions due to differences in environment settings, installed packages, and system configurations.

Most distributions use the standard Bourne Again Shell (bash), ensuring that basic variable features remain consistent. However, variations may arise in terms of default configurations, available features, and environmental variables set by the system. For instance, some distributions may have additional built-in variables, or their configuration files (like .bashrc and .bash_profile) might include different default settings.

Example

#!/bin/bash MY_VAR="Hello, World!" echo $MY_VAR

bash variables Linux distributions environment variables bash scripting shell scripting