Linux adduser command

Linux 命令大全Linux Command Reference

The Linux adduser command is used to add user accounts or update preset user information.

The adduser and useradd commands are the same command (via a symbolic link).

Permissions: system administrator.

adduser is used to add users. Correspondingly, there is also a command for deleting usersuserdel, and its syntax isuserdel [login ID]。

Syntax

adduser [-c comment] [-d home_dir] [-e expire_date] [-f inactive_time] [-g initial_group] [-G group[,...]] [-m [-k skeleton_dir] | -M] [-p passwd] [-s shell] [-u uid [ -o]] [-n] [-r] loginid

or

adduser -D [-g default_group] [-b default_home] [-f default_inactive] [-e default_expire_date] [-s default_shell]

Parameter Description：

  • -c comment The comment data of the new user in the password file (usually /etc/passwd)
  • -d home_dir Set the user's home directory to home_dir; the default value is the default home followed by the user account loginid
  • -e expire_date Set the expiration date for this account (format: YYYY-MM-DD), the default is permanently valid
  • -f inactive_time Example:

Examples

Add a normal user

# adduser kk //添加用户kk

Specify the corresponding user group for the added user

# adduser -g root kk //添加用户kk，并指定用户所在的组为root用户组

Create a system user

# adduser -r kk //创建一个系统用户kk

Specify the /home directory for the newly added user

# adduser -d /home/myf kk //新添加用户kk，其home目录为/home/myf
//当用户名kk登录主机时，系统进入的默认目录为/home/myf

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