lua - Lua interpreter


   lua [ options ] [ script [ args ] ]


   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.


   -e stat
          execute statement stat.

   -i     enter interactive mode after executing script.

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

   -v     show version information.

   -E     ignore environment variables.

   --     stop handling options.

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


   The documentation at, especially section  7  of  the  reference


   Error messages should be self explanatory.


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

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


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