Chapter 4 Environment variables

There are two environment variables in Linux environment. One is a global environment variable and the other is a local environment variable. Global environment variables are environment variables that are displayed throughout the Linux system, and global environment variables are created in all uppercase letters. 1. How to check global environment variables and local environment variables The command to view the global environment variable is printenv, and the default values are displayed when ...

원문링크 : Chapter 4 Environment variables