Linux Account Management Summary "not finished"

Linux Account Management Summary

First, new and delete users

1, useradd new users

Grammar:

Useradd user account name [-u UID] [-G initial user Group] [-G secondary user group] [-mm] [-C description] [-D Home folder absolute path] [-s Shell]

-U:

-G:

2. Related Documents

1)/etc/passwd

2)/etc/shadow

3)/etc/group

4)/Home

3, passwd set, change password

4, usermod Modify user information

5, Userdel Delete user-related information

6, ID query someone related uid/gid

7, groupadd New user group

8, Groupmod for group related parameter modification

9, GPASSWD

10, su Switch user

11. Sudo

12, W, who, last, Lastlog query users

13, write, MESG, wall users to talk about

14. Mail User Email mailbox

Linux Account Management Summary "not finished"