Linux environment variable settings

1. directly use the Export command: # Export Path = $ path: custom path Check whether a port has been set. Run the Export command to view the Port: [Root @ localhost bin] # Export Path = $ path: custom path 2. Modify the profile file: # Vi/etc/profile Add: Export Path = "$ path:/opt/au1200_rm/build_tools/bin"3. Modify the. bashrc file: # Vi/root/. bashrc Add: Export Path = "$ path:/opt/au1200_rm/build_tools/bin"The last two methods generally take effect after you log out of the system again. Finally, you can test them using the echo command: # Echo $ path Check whether the output contains "custom path ". The "$ path" indicates that the previously set path is still valid. Do not miss $. From iciba.com copyright by ICBA