less or pagesless a program display to the screen the command line on Unix and ... windows and Unix-like is to display (and not change) the contents of a file text on the screen at a time can be used. This program, quasi-program more, but with more functionality that allow navigation forward and backward in the file gives. Contrary to the often edit trimmer and displays the UNIX command Les do not need to read all the contents of the file before the start of the not in result files with a high volume the much faster of the show.