Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

lua5.2(1)


NAME

   lua - Lua interpreter

SYNOPSIS

   lua [ options ] [ script [ args ] ]

DESCRIPTION

   lua  is  the  standalone  Lua  interpreter.   It loads and executes Lua
   programs, either in textual source form or in precompiled binary  form.
   (Precompiled  binaries  are output by luac, the Lua compiler.)  lua can
   be used as a batch interpreter and also interactively.

   The given options are handled in order and then the Lua program in file
   script  is loaded and executed.  The given args are available to script
   as strings in a global table named arg.  If no options or arguments are
   given,  then  -v  -i  is assumed when the standard input is a terminal;
   otherwise, - is assumed.

   In interactive mode,  lua  prompts  the  user,  reads  lines  from  the
   standard input, and executes them as they are read.  If a line does not
   contain a complete statement, then a secondary prompt is displayed  and
   lines  are  read until a complete statement is formed or a syntax error
   is found.  If a line starts with '=', then lua evaluates  and  displays
   the values of the expressions in the remainder of the line.

   At  the  very  start, before even handling the command line, lua checks
   the contents of the environment variables LUA_INIT_5_2 or LUA_INIT,  in
   that  order.  If the contents is of the form '@filename', then filename
   is executed.  Otherwise, the string is assumed to be  a  Lua  statement
   and is executed.

OPTIONS

   -e stat
          execute statement stat.

   -i     enter interactive mode after executing script.

   -l name
          execute  the equivalent of name=require('name') before executing
          script.

   -v     show version information.

   -E     ignore environment variables.

   --     stop handling options.

   -      stop handling options and execute the standard input as a file.

SEE ALSO

   luac(1)
   The documentation at lua.org, especially section  7  of  the  reference
   manual.

DIAGNOSTICS

   Error messages should be self explanatory.

AUTHORS

   R. Ierusalimschy, L. H. de Figueiredo, W. Celes

                     $Date: 2011/11/16 17:16:53 $                LUA5.2(1)



Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.



Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.



Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.



Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.


birds banner