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 ...

Step 4: Press “Esc” to exit this mode. Then type “:w” to save your script. Once saved, the shell script will appear as below. Step 5: When you’re back to the console, type “:q”. Then write: bash ...

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

The Linux script command has been around for ages and provides a simple but useful service. It lets you record command line activity – both input and output.

Linux operating system allows users to create commands and execute them over the command line. To create a command in Linux, the first step is to create a bash script for the command. The second step ...

Step-by-step shell script execution Follow these steps to create and run a shell script of your own from your Ubuntu home directory: Create a directory to store your shell script Create a file in your ...