env is a shell command for Linux, Unix, and Unix-like operating systems. It can print a list of the current environment variables, or to run another program in a custom environment without modifying the current one.

What is the purpose of set and env command in Linux OS?

There are several commands available that allow you to list and set environment variables in Linux: env – The command allows you to run another program in a custom environment without modifying the current one. When used without an argument it will print a list of the current environment variables.

For what do the .ENV is used?

env is a shell command for Unix and Unix-like operating systems. It is used to either print a list of environment variables or run another utility in an altered environment without having to modify the currently existing environment.