Gnu less

A pager for unix systems.

Documentation

man less	https://man.archlinux.org/man/less.1
man lesskey	https://man.archlinux.org/man/core/less/lesskey.1.en
github	https://github.com/gwsw/less

Locations

${XDG_CONFIG_HOME}/.lesskey

custom keybindings

Usage

Common params

less \
  -X `# skip de-initialization (leave text onscreen at exit)`
  -R `# raw control chars (include colours)` \
  -S `# chop lines wider than terminal can display (scroll w/ arrowkeys)` \
  -F `# only use pager if terminal not tall enough for all text` \
  +F `# tail output, only use pager if terminal not tall enough for all text` \
  -i `# ignore case` \
  \
  --mouse         `# enable scrolling with mouse` \
  --wheel-lines=5 `# number of lines scrolled each mousewheel click` \

Configuration

Environment

LESS="XRF"  # default less params -X, -R, -F

Colours

less colours can be controlled via $LESS_TERMCAP_* environment variables.
See https://unix.stackexchange.com/questions/108699/documentation-on-less-termcap-variables