Not sure what went wrong


#1

hello

https://www.codecademy.com/courses/learn-the-command-line/lessons/redirection/exercises/pipes?action=lesson_resume
on this exercise it says I should get three numbers back as the output but I don’t not sure what went wrong
it seems like i am just getting the input back as output
thanks


Explanation of classes code
#2

Could you please post your code?


#3

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