How to scroll scroll linux

Because linux black window with no roll bar, sometimes ordering too much, you need to scroll

1, using the shortcut keys shift + pageup / pagedamn

2, or using LESS MORE command

format

<指令>|LESS             #可以翻滚屏幕

LESS -N <file>         #以可翻滚形式打开文件

Wherein -N represents a parameter with line numbers,