I'm using Ubuntu 16.04 in Windows Subsystem Linux. But it suddenly stopped me from scrolling up and down.
For example, when you want to know how the command
tar works so you type
tar --help, the result is so long that you should scroll up and down to read all of what it says.
But when I type
tar --help, the result only shows that is permitted in current size of the terminal, so I can never read the upper part, only the last part. Scroll doesn't appear. How can I fix it?