sed -n '2,4p' /core/home_info.txt line 2-4 show this txt, in addition
cat /core/home_info.txt | tail -n 1000: Displays the last 1000 lines
| Tail -n +1000: From the 1000 start line display, the display line after 1000
| Head -n 1000: 1000 is displayed in front of the line
Wording,
But how to display the specified content, but also I hope that enlighten