It is available on Unix and Unix-like systems, DOS,[3] Digital Research FlexOS,[4] IBM/Toshiba 4690 OS,[5] IBM OS/2,[6] Microsoft Windows and ReactOS.

The more command was originally written by Daniel Halbert, a graduate student at the University of California, Berkeley, in 1978.

less, a similar command with the extended capability of allowing both forward and backward navigation through the file, was written by Mark Nudelman between 1983 and 1985 and is now included in most Unix and Unix-like systems.

[14] The numerical computing environments MATLAB and GNU Octave include a more function that turns output pagination on or off.

In the lower-left corner of the screen is displayed the text "--More--" and a percentage, representing the percent of the file that more has paged through.