Create Linux User and Assign Group via Command Line

紀錄一下如何透過 command line 建立 linux user

Create User

建立 user 和 home dir

sudo useradd -s /bin/bash -m USER_NAME

若要指定特殊的 home dir

sudo useradd -m -d USER_HOME USER_NAME

若一開始建立 user 忘了加 -m (--create-home), 可透過其他指令建立

sudo mkhomedir_helper USER_NAME

更改 login shell to bash

sudo usermod --shell /bin/bash USER_NAME

Add User to Group

• Create a Group

  sudo groupadd GROUP_NAME
  

• Add an existing user to a group

  sudo usermod -a -G GROUP_NAME USER_NAME
  

Reference

• How to Create Users in Linux (useradd Command)
• How to Create Home Directory for Existing User in Linux
• 3 Ways to Change a Users Default Shell in Linux
• How to Add User to Group in Linux