The exit command in Linux is used to terminate a shell session or exit from a script. It can also return a status code to the operating system or the calling process, which indicates whether the shell session or script executed successfully or encountered an error.
Key Points:
Exiting a Shell Session: Typing exit in the terminal closes the current shell.
Returning a Status Code: You can specify an exit code after the command (e.g., exit 0 for success or exit 1 for an error).
Examples:
Exit the Shell: Simply typing exit ends the session and closes the terminal.
Exit with Success Code: Use exit 0 to indicate that the session or script completed without errors.
Exit with Error Code: Use exit 1 or another non-zero number to indicate an error or abnormal termination in a script.
The exit code can be retrieved using $? to check the status of the last executed command.What is the exit command in Linux, and how is it used with examples?