AddUser add user and mount hard disk

We user The most basic of management Action is Add users . 

  Here we talk about adduser, also useradd It can also be used .

adduser test add to test user

Add... For users sudo jurisdiction , 1. chmod 777 /etc/sudoers  hold test Add the user's permission . Remember to reply to file permissions after adding

                                       2. usermode -aG sudo test 

                                       3. Change the working directory

                                             usermode -d /hom2/  test

assign work directory ：

                  useradd -d /home2/test  -m test

                  passwd  test

So you have a basic account .

Hard disk mount ：

  fdisk  -l Find the disk that is not attached

 fdisk  /dev/sd1          Choose in turn m,n,p,1,,

Make a file system mkfs.ext4  /dev/sdb1

mkdir /home2 

mount -t ext4 -rw  /dev/sdb1 /home2 

chmod  -R 777 /home2    //  So that all ordinary users can access this directory .