Question How to show How many root in my server

[iGraphics]

Hello today I made this command to show how many root user in my server

getent passwd | cut -d : -f 1 | xargs groups

and I find :

root : root
bin : bin
daemon : daemon
adm : adm
lp : lp
sync : root
shutdown : root
halt : root
mail : mail
operator : root
games : users
ftp : ftp

I'm ask about:
sync : root
shutdown : root
halt : root
operator : root

can you tell me about these users ? I don't made them before!
????

 

[AYamshanov]

Hi iGraphics,

33.3. Standard Users