Bash Shell Scripting - Returning Data

The video tutorial explains how return values work in different programming languages, focusing on bash scripting. It covers three methods to return values from functions: using global variables, command substitution, and the return statement. The tutorial demonstrates how to count user accounts in a system using these methods and highlights the limitations of the return statement in bash, which only returns numeric exit statuses. The video concludes with examples of using return values for decision-making in scripts.

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