Go application and unix users?

Question

go

I have a question on a subject.
The application must support unix users , if during registration the login exists in the system - we issue a registration error.
How to implement this task using echo ?

Answer 1

I'm not sure that I understand the essence of the question correctly, but it seems to me that the list of Unix users should be somewhere around here /etc/passwd . When requesting registration, read this file, if the user already exists, then return an error, if there is no user, then execute useradd via exec.Command