Ubuntu modified environment cause failed to start

When installing idk maven for Ubuntu, Environment was modified to configure JDK maven here. However, the user enters the password interface to enter a password after entering the desktop.

Workaround:

1. Press CTRL+ALT+F1 to enter the command prompt interface

This interface will find common commands such as LS VI sudo and so on can not be used, this is because environment error caused the environment variable it configured, want to use the full path such as:/usr/bin/sudo

2. Delete the added content

/usr/bin/sudo/usr/bin/vi/etc/environment

3. After reboot, you can

/usr/bin/sudo reboot

Ubuntu modified environment cause failed to start