It's easy to add a few lines of text to files on Linux, but there are tools that make it easier to add many lines.

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 ...

Choose a Bash or Python script if you need to perform a more complex substitution across multiple files or with additional logic. 6 Ways to Find and Replace Text in the Linux Terminal© Provided ...

The most common use cases of sed include operations like selecting text, substituting text, modifying an original file, adding lines to text, or deleting lines from the text. It can be used from the ...

That means if your script is careful to exit, you can add as much “garbage” to the end of it as you like. The shell will never look at it, so it’s possible to store the payload there.