luajit(1) LuaJIT documentation luajit(1)
NAME
luajit - Just-In-Time Compiler for the Lua Language
SYNOPSIS
luajit [options]... [script [args]...]
WEB SITE
http://luajit.org
DESCRIPTION
This is the command-line program to run Lua programs with LuaJIT.
LuaJIT is a just-in-time (JIT) compiler for the Lua language. The vir-
tual machine (VM) is based on a fast interpreter combined with a trace
compiler. It can significantly improve the performance of Lua programs.
LuaJIT is API- and ABI-compatible with the VM of the standard Lua 5.1
interpreter. When embedding the VM into an application, the built
library can be used as a drop-in replacement.
OPTIONS
-e chunk
Run the given chunk of Lua code.
-l library
Load the named library, just like require("library").
-b ... Save or list bytecode. Run without arguments to get help on
options.
-j command
Perform LuaJIT control command (optional space after -j).
-O[opt]
Control LuaJIT optimizations.
-i Run in interactive mode.
-v Show LuaJIT version.
-E Ignore environment variables.
-- Stop processing options.
- Read script from stdin instead.
After all options are processed, the given script is run. The argu-
ments are passed in the global arg table.
Interactive mode is only entered, if no script and no -e option is
given. Interactive mode can be left with EOF (Ctrl-Z).
EXAMPLES
luajit hello.lua world
Prints "Hello world", assuming hello.lua contains:
print("Hello", arg[1])
luajit -e "local x=0; for i=1,1e9 do x=x+i end; print(x)"
Calculates the sum of the numbers from 1 to 1000000000.
And finishes in a reasonable amount of time, too.
luajit -jv -e "for i=1,10 do for j=1,10 do for k=1,100 do end end end"
Runs some nested loops and shows the resulting traces.
COPYRIGHT
LuaJIT is Copyright (C) 2005-2015 Mike Pall.
LuaJIT is open source software, released under the MIT license.
SEE ALSO
More details in the provided HTML docs or at: http://luajit.org
More about the Lua language can be found at: http://lua.org/docs.html
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luajit(1)