MAC Configuration Environment variables

1 View Path First

Command: $PATH

2 How to set path

Command: Echo "Export path=xxxxxx: $PATH" >> ~/.bash_profile

Explanation: Print "Export path=xxxxxx: $PATH" output to ~/.bash_profile.

3 Unix Knowledge Supplement: ~/.bash_profile Introduction

Mac and Linux endpoints are typically parsed using bash. When bash finishes reading the/etc/profile of the overall environment variable and calls the other configuration file, the user-defined personal profile is then read. There are three types of files that bash reads:

~/.bash_profile ~/.bash_login ~/.profile

In fact bash Restart is read only one of the above files, and the order of reading is in accordance with the order above. In other words, read bash_profile will not read the back, if Bash_profile does not exist, the latter can have the opportunity.

Let's take a look at what's inside Bash_profile:

Command: Cat ~/.bash_profile

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MAC Configuration Environment variables