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Issue description  

It is about regular users in this part:

When I made ~/user_info.txt I noticed that there is even user nobody. I believe this user is not regular user but in the hint is written this :

Use a text editor to remove all system users. The UIDs of system users are less than 1000.
But what I see this nobody user has uid and git higher than 1000.
Like :
nobody:x:65534:65534:Kernel Overflow User:/:/sbin/nologin

I would like to know how to recognize the regular users , I would guess that there must be something like home/"regularuser1,and so on" and it must not be /sbin/nologin at the end maybe.

Or if this hint in this section could be somehow improved not only for my better understanding but also for anybody who will do this course like me. Thank you.

Steps to reproduce:

Workaround:

Expected result: