The env command is a command-line utility in Unix-like operating systems that allows you to view, set, or modify the environment variables for a specific command or shell session. Environment variables are dynamic values that affect the behavior and configuration of various programs and processes running on the system. example

In the above syntax, VAR represents the name of the environment variable, value is the value you want to set for that variable, and command is the command you want to execute with the modified environment.