Shulou(Shulou.com)05/31 Report--

Editor to share with you how to modify the environment variable path in mac, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

(1) first of all, you need to know what kind of Shell the Mac OS X is used, and use the command

Echo $SHELL

If the output is csh or tcsh, then you are using C Shell.

If the output is: bash,sh,zsh, then you may be using a variant of Bourne Shell.

Before Mac OS X 10.2, the default was C Shell.

After Mac OS X 10.3, the default is Bourne Shell.

(2) if it is Bourne Shell.

Then you can add the environment variable to be added to the .profile or .bash _ profile under the home directory, and add it if there is no relationship, if one is not generated.

1./etc/profile (it is not recommended to modify this file)

Global (public) configuration, no matter which user, will read the file when logging in.

2./etc/bashrc (usually add system-level environment variables to this file)

Global (public) configuration, this file will be read no matter how the bash shell is executed.

I add aliases for the mysqlstart, mysql, and mysqladmin commands here to ensure that every user can use these three commands.

3.~/.bash_profile (usually add user-level environment variables to this file)

(note: Linux contains .bashrc and Mac is .bash _ profile)

This file is read only if the bash shell is executed in login mode. The file is executed only once! By default, set some environment variables

Example: modify the environment variable of firefox

1. Enter the vim editor through vim. / .bash _ profile

two。 Enter I in English mode to enter editing mode

3. Join path

Export FIREFOX_HOME=/Applications/Firefox.app/Contents/MacOSexport PATH=$PATH:$FIREFOX_HOME

4. Click esc to exit editing mode 5. Enter: wq to exit vim editor 6. Go back to the terminal input interface and enter source ~ / .bash_profile

The above is all the contents of the article "how to modify the environment variable path in mac". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.