To move forward one line press the RETURN key. Optionally a number n may be pressed before the RETURN key to move forward by n lines. To move backwards by a page press b or CTRL-B . Some versions of more support moving backwards by one line with the k key but your mileage may vary here.
How do I increase more command in Linux?
How to use more command? Now, to scroll the display up one line at a time, press enter. If you want to scroll a screenful in one go, use the space bar key. Backwards scrolling can be achieved by pressing ‘b’.
How do you navigate more?
Learn Linux ‘more’ Command
In order to navigate through the file line by line press Enter key or press Spacebar key to navigate one page at a time, the page being your current terminal screen size. To exit the command just press q key.