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 ...

Yes, that’s the exit code and it’s meant to indicate that the pwd command you just used ran without any errors. An exit code of 0 always indicates that no problems were encountered.

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 ...

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.

However, you can easily create a shell script that contains a file — even an archive of many files — and then retrieve the file and act on it at run time.

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 ...