Linux OS

Please provide the full code and also help me in understanding the bold part, I am not able to understand which file they are talking about. Create a script where you prompt the user for input, and the value provided will be a user. Loop through each file in that user's home directory (ignore the sub directories) and append the line cookie=a87vandks6282basdfk7 to the end of the file, if the file does not already contain a line with 'cookie='. Once completed, take a screenshot of the source code of the script, and of the script executing, to execute the script you will need to create your own sample input, please include the sample input as part of your execution screenshot