1 In your source directory, write a script called "them" in which you create a function called whoisthere that displays a listing of who is logged in and displays the column headings for the information that appear
2 Make the contents of your script resident in memory and test your who is there functionars
3 Modify your whoisthere function so that you can enter "These are the folks logged in:" as an argument to appear before your list of who is logged in to the system
4 How can you set up your new who is there function so that it can be run each time you log in using the Bash script?