less command

less was initially written by Mark Nudelman during 1983-85, in the need of a version of more able to do backward scrolling of the displayed text. The name came from the joke of doing "backwards more". less is now part of the GNU project and it is included in most Unix systems.

less -M [ Shows more detailed prompt, including file position]

Examples:
less -M readme.txt # Read "readme.txt".
file * | less #Easier file analysis.
grep -i void *.c | less -I -p void #Case insensitive search for "void" in all .c files