Demonstrate how to handle errors and exit codes in a shell script.

Handling errors and exit codes in a shell script is crucial to ensure proper execution and error handling. By checking the exit codes of commands and implementing error handling mechanisms, you can gracefully handle errors, provide meaningful error messages, and control the script's behavior based on different exit statuses. 1. Checking Exit Codes: * Every command executed in a shell script returns an exit code, which indicates the success or failure of the command. * The exit code is stored in the special variable `$?`, which you can access immediately after the command execution. * The convention is that an exit code of 0 indicates success, while a non-zero exit code indicates an error. 2. Conditional Execution Based on Exit Codes: * You can use conditional statements, such as `if-else` or `case`, to check the exit code and perform different actions accor....