1) It looks somehow you are copy/pasting the text “avadurkin78@penguin” which of course isn’t going to run as a command
2) “ls” as in “lowercase L lowercase S”, not “capital i”!
3) I’m assuming you never successfully pasted the directory (since its not found)...what happens when you click ON the “Linux files” folder in the sidebar (of your first screenshot)? It should be completely empty and then you can paste into it:
And then try the command line steps:
