How can you display the environment variables?

Displaying environment variables in a Linux environment can be achieved using various commands, and both 'env' and 'printenv' serve this purpose effectively.

The 'env' command prints a list of all environment variables and their values. It is commonly used to run a command in a modified environment or to show the current environment settings without any additional options. This makes it a useful tool for checking what environment variables are currently set.

Similarly, the 'printenv' command specifically displays the values of all or specified environment variables. When used without arguments, it will return every environment variable that is accessible in the current shell session. This command provides a clear view of the environment variable settings.

Using either of these commands will yield similar output regarding the environment variables, confirming that both 'env' and 'printenv' can be used interchangeably for this purpose. The 'set' command, on the other hand, has a broader role; it not only displays environment variables but also shell functions and local variables, making it less focused on just environment variables. Therefore, while 'set' can display information regarding environment variables, it is not optimal when the objective is strictly to list them.

In summary, for specifically displaying environment variables, both 'env' and '