How to recover a solution after the Linux environment variable is set incorrectly under the Pppcloud cloud host

How to recover the solution after the Linux environment variable is set incorrectly: Enter on the command line: Export Path=/usr/bin:/usr/sbin:/bin:/sbin:/usr/x11r6/bin and enter
/etc/profile: This file sets the environment information for each user of the system, and the file is executed the first time the user logs on. and collects the shell settings from the configuration file of the/ETC/PROFILE.D directory./ETC/BASHRC: Run bash for each The user of the shell executes the file. When the bash shell is opened, the file is read. ~/.bash_profile: Each user can use this file to enter the shell information dedicated to their own use, when the user logs in, the file is only executed once! By default, He sets some environment variables to execute the user's. bashrc file. ~/.BASHRC: This file contains bash information dedicated to your bash shell, which is read when you log on and every time you open a new shell. ~/.bash_logout: Executes the file each time it exits the system (exiting the bash shell). In addition, the variables set in/etc/profile (global) can be applied to any user, while variables set in ~/.BASHRC, etc. (local) only inherit variables from/etc/profile, they are "parent-child" relationships. ~/.bash_profile is interactive, The login way into bash run ~/.BASHRC is the interactive non-login way to go into bash normally the two settings are roughly the same, so the former usually calls the latter. www.linux010.cn (Source: linux010)

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How to recover a solution after the Linux environment variable is set incorrectly under the Pppcloud cloud host