Is it possible to make two-lines prompt works better with the "less" pager?

[ZekeLu]

When the prompt height is set to two lines, after quit the less pager, the output of the pager is pushed one line up. See the first image below.

What I want is keep the output of the pager on the screen without being pushed up. When the prompt height is set to one line, I can get the expected behavior. See the second image below.

I like the two lines mode very much! Is it possible to keep the output of the pager no moving in two lines mode?

Thank you in advance!

[romkatv]

The output is moved up whenever anything is printed on the screen. There is no way around it. If your pager has an option to use only N - 1 lines of the screen (where N is the total height of your terminal), then you can achieve what you want. If your pager doesn't have this option, then you cannot.

[ZekeLu]

Wow, I didn't expect to get your reply so soon! Thank you @romkatv !

I'm using the less pager. Its doc says that it will read from the environment variable LINES to set the number of lines on the screen, but it seems that this variable is controlled by the system, and I can not change it.

I have tried to customize the prompt of less to split it into two lines, but with no luck, I can not split it into two lines (\n and \r don't work).

I think I have to stay with the one line mode.

Your work is deeply, deeply appreciated. Thank you very much!