Knowing how to work with and display exit codes on the Linux command line or in scripts can help make errors more obvious.

Do you want to create a Shell script in your Linux system? This guide will take you through how to create a shell script using multiple text editors, how to add comments, and how to use Shell ...

Each Linux command returns an exit code, with 0 indicating success and non-zero values indicating failure. You can use the $? variable to access the exit code and control program flow in scripts.

It's not hard to create and run a shell script in Linux distros like Ubuntu, but there are a few non-obvious pitfalls you need to avoid. Here's a quick example of how to execute a script in Linux.

On some Linux systems (like Fedora), the script command also makes it possible to separate input from output in your session recording using the -I (or –log-in) and -O (or –log-out) options.