sensible-pager, sensible paging
sensible-pager [OPTIONS...]
sensible-pager make sensible decisions on which pager to call. Programs in Debian can use this script as their default pager, or emulate their behavior.
Documentation of the PAGER variable in environ(7)
Documentation of behavior of sensible-utils under a debian system is available under section 11.4 of debian-policy usually installed under /usr/share/doc/debian-policy (you might need to install debian-policy)