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Merged in keep alive changes and mrjunejune changes.
author MrJuneJune <me@mrjunejune.com>
date Fri, 23 Jan 2026 22:22:30 -0800
parents 94705b5986b3
children
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1 .TH luajit 1 "" "" "LuaJIT documentation"
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2 .SH NAME
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3 luajit \- Just-In-Time Compiler for the Lua Language
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4 \fB
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5 .SH SYNOPSIS
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6 .B luajit
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7 [\fIoptions\fR]... [\fIscript\fR [\fIargs\fR]...]
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8 .SH "WEB SITE"
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9 .IR https://luajit.org
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10 .SH DESCRIPTION
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11 .PP
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12 This is the command-line program to run Lua programs with \fBLuaJIT\fR.
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13 .PP
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14 \fBLuaJIT\fR is a just-in-time (JIT) compiler for the Lua language.
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15 The virtual machine (VM) is based on a fast interpreter combined with
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16 a trace compiler. It can significantly improve the performance of Lua programs.
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17 .PP
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18 \fBLuaJIT\fR is API\- and ABI-compatible with the VM of the standard
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19 Lua\ 5.1 interpreter. When embedding the VM into an application,
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20 the built library can be used as a drop-in replacement.
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21 .SH OPTIONS
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22 .TP
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23 .BI "\-e " chunk
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24 Run the given chunk of Lua code.
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25 .TP
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26 .BI "\-l " library
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27 Load the named library, just like \fBrequire("\fR\fIlibrary\fR\fB")\fR.
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28 .TP
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29 .BI "\-b " ...
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30 Save or list bytecode. Run without arguments to get help on options.
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31 .TP
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32 .BI "\-j " command
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33 Perform LuaJIT control command (optional space after \fB\-j\fR).
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34 .TP
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35 .BI "\-O" [opt]
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36 Control LuaJIT optimizations.
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37 .TP
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38 .B "\-i"
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39 Run in interactive mode.
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40 .TP
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41 .B "\-v"
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42 Show \fBLuaJIT\fR version.
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43 .TP
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44 .B "\-E"
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45 Ignore environment variables.
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46 .TP
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47 .B "\-\-"
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48 Stop processing options.
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49 .TP
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50 .B "\-"
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51 Read script from stdin instead.
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52 .PP
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53 After all options are processed, the given \fIscript\fR is run.
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54 The arguments are passed in the global \fIarg\fR table.
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55 .PP
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56 Interactive mode is only entered, if no \fIscript\fR and no \fB\-e\fR
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57 option is given. Interactive mode can be left with EOF (\fICtrl\-Z\fB).
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58 .SH EXAMPLES
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59 .TP
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60 luajit hello.lua world
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61
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62 Prints "Hello world", assuming \fIhello.lua\fR contains:
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63 .br
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64 print("Hello", arg[1])
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65 .TP
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66 luajit \-e "local x=0; for i=1,1e9 do x=x+i end; print(x)"
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67
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68 Calculates the sum of the numbers from 1 to 1000000000.
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69 .br
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70 And finishes in a reasonable amount of time, too.
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71 .TP
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72 luajit \-jv \-e "for i=1,10 do for j=1,10 do for k=1,100 do end end end"
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73
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74 Runs some nested loops and shows the resulting traces.
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75 .SH COPYRIGHT
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76 .PP
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77 \fBLuaJIT\fR is Copyright \(co 2005-2023 Mike Pall.
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78 .br
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79 \fBLuaJIT\fR is open source software, released under the MIT license.
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80 .SH SEE ALSO
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81 .PP
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82 More details in the provided HTML docs or at:
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83 .IR https://luajit.org
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84 .br
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85 More about the Lua language can be found at:
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86 .IR https://lua.org/docs.html
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87 .PP
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88 lua(1)