What is the command to exit without saving in Linux?

Linux does not save the exit command is "exit". When the user enters "exit" in the terminal, the system will perform the following steps: 1. Save the environment and status of the user's current session. The system will save the environment and status of the current session, including the current working directory, processes, variables, etc. Information; 2. Close the Shell process, which will cause the terminal window to close or the currently connected SSH session to terminate; 3. Return the exit status code. The exit status code is an integer value used to represent the exit status of the Shell session.

#The operating environment of this article: linux6.4.3 system, Dell G3 computer.

In Linux, the commonly used save and exit command is "exit". When the user wants to exit the current terminal session, they can use this command to save and exit.

The "exit" command is used to terminate the current Shell session. When the user enters "exit" in the terminal, the system will perform the following steps:

Save the environment and status of the user's current session: Before executing the "exit" command, the system will save The environment and status of the current session, including the current working directory, process, variables and other information.

Close the Shell process: The "exit" command will close the current Shell process and release system resources. This will cause the terminal window to close or the currently connected SSH session to terminate.

Return exit status code: After terminating the Shell process, the system will return an exit status code. The exit status code is an integer value used to represent the exit status of the shell session. Typically, an exit status code of 0 indicates a successful exit, and a non-zero value indicates an exception or error.

When using the "exit" command, you can also add an integer value after the command as the exit status code. For example, "exit 1" means exiting the current session with exit status code 1.

In addition, in some Linux distributions, other save and exit commands can also be used, such as the "logout" command. The "logout" command has similar functions to the "exit" command, both are used to terminate the current Shell session and return the exit status code.

It should be noted that the "exit" or "logout" command will only terminate the current Shell session and will not affect other running Shell sessions or system processes. If the user runs multiple Shell sessions in multiple terminal windows or SSH sessions, they need to use the "exit" or "logout" command to exit each session separately.

Summary

The save and exit command in Linux is "exit". This command can terminate the current shell session and save the current environment and status. During the exit process, you can also specify the exit status code to exit the status.

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