一个简单的方法来设置环境变量

Environment variables in the bash shell help you in several ways. Certain built-in variables change the shell in ways that make your life a little easier, and you can define other variables to suit your own purposes. Here are some examples of built-in shell variables: PS1 defines the shell"s command-line prompt; HOME defines the home directory for a user; PATH defines a list of directories to search through when looking for a command to execute. Source: http://lowfatlinux.com/linux-environment-variables.html

masterconfig
readme.txt
configure