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.

You could even embed an executable file in a script — even another script — and then execute that script which might unpack another script. It boggles the mind.

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 ...