Linux environment variable configuration

Linux environment variable configuration-general Linux technology-Linux technology and application information. For more information, see the following section. View the names and values of all environment variables: export

Check the environment variable value by name: echo $ environment variable name

Modify the environment variable value: export environment variable name = path

Add some new values after the environment variable: export environment variable name = $ environment variable name: PATH such as: export PATH = $ PATH:/usr/local/bin: /opt/XXX/bin

The preceding methods can only temporarily modify the environment variable value, which disappears after restart. To keep the environment variable value unchanged after restart, you must modify the configuration file.

Vi/etc/profile

Add the export environment variable = path at the end

Adding the program PATH to the environment variable PATH does not need to be added during running :./