What does the command 'set' do in a Shell Script?

The command 'set' in a shell script is primarily used to display all the shell variables and their current values. When you run 'set' without any arguments in a shell, you will see a list of all the defined shell variables along with the corresponding values. This includes both system variables and user-defined variables.

The 'set' command can also be used in various ways to modify the behavior of the shell, such as setting options for the shell environment, but its most common usage is for displaying the current environment's variables. This makes it a valuable tool for debugging and understanding the state of the environment within a script or a session.

Other options such as executing a script, exporting variables, or modifying the execution path do not accurately represent the primary function of the 'set' command in a shell script context.