#insert disk

fdisk -l  #show the disk name and info

mkdir /mnt/mysda1   &  mount /dev/sda1 /mnt/mysda1   #也可以不自建文件夹 直接挂载在 /mnt

df -h #show mount info

lsblk #show block device

umount /mnt/mysda1 &rm /mnt/mysda1 

cat /sys/class/hwmon/hwmon1/temp1_input  #minus 1000 is tempreture of cpu

w

uptime

free

mpstat

systemctl set-default multi-user.target   #设置不自动进入桌面

systemctl set-default graphical.target