How to add, delete edit username from /etc/passwd

问题:

This question already has answers here:

How to create a linux user using C/C++? (3 answers)

Closed 3 years ago.

I want to add or delete or edit usernames of /etc/passwd in a C program. Are there any standard Linux functions that do a such functions?

回答1:

There is adduser and deluser. Use man deluser for details.

EDIT: i missed the C part in the question.

man is also your friend in this case. With man 3 deluser you can ask if there is anything in stdlib called like that. Read https://unix.stackexchange.com/questions/3586/what-do-the-numbers-in-a-man-page-mean for more informations on that.

This is not the case. You might want to call the unix tool from within C: How do you write a C program to execute another program?