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88 lines
2.3 KiB
88 lines
2.3 KiB
.TH luajit 1 "" "" "LuaJIT documentation"
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.SH NAME
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luajit \- Just-In-Time Compiler for the Lua Language
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\fB
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.SH SYNOPSIS
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.B luajit
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[\fIoptions\fR]... [\fIscript\fR [\fIargs\fR]...]
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.SH "WEB SITE"
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.IR https://luajit.org
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.SH DESCRIPTION
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.PP
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This is the command-line program to run Lua programs with \fBLuaJIT\fR.
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.PP
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\fBLuaJIT\fR is a just-in-time (JIT) compiler for the Lua language.
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The virtual machine (VM) is based on a fast interpreter combined with
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a trace compiler. It can significantly improve the performance of Lua programs.
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.PP
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\fBLuaJIT\fR is API\- and ABI-compatible with the VM of the standard
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Lua\ 5.1 interpreter. When embedding the VM into an application,
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the built library can be used as a drop-in replacement.
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.SH OPTIONS
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.TP
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.BI "\-e " chunk
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Run the given chunk of Lua code.
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.TP
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.BI "\-l " library
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Load the named library, just like \fBrequire("\fR\fIlibrary\fR\fB")\fR.
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.TP
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.BI "\-b " ...
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Save or list bytecode. Run without arguments to get help on options.
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.TP
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.BI "\-j " command
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Perform LuaJIT control command (optional space after \fB\-j\fR).
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.TP
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.BI "\-O" [opt]
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Control LuaJIT optimizations.
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.TP
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.B "\-i"
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Run in interactive mode.
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.TP
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.B "\-v"
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Show \fBLuaJIT\fR version.
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.TP
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.B "\-E"
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Ignore environment variables.
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.TP
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.B "\-\-"
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Stop processing options.
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.TP
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.B "\-"
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Read script from stdin instead.
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.PP
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After all options are processed, the given \fIscript\fR is run.
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The arguments are passed in the global \fIarg\fR table.
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.PP
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Interactive mode is only entered, if no \fIscript\fR and no \fB\-e\fR
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option is given. Interactive mode can be left with EOF (\fICtrl\-Z\fB).
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.SH EXAMPLES
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.TP
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luajit hello.lua world
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Prints "Hello world", assuming \fIhello.lua\fR contains:
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.br
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print("Hello", arg[1])
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.TP
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luajit \-e "local x=0; for i=1,1e9 do x=x+i end; print(x)"
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Calculates the sum of the numbers from 1 to 1000000000.
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.br
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And finishes in a reasonable amount of time, too.
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.TP
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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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Runs some nested loops and shows the resulting traces.
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.SH COPYRIGHT
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.PP
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\fBLuaJIT\fR is Copyright \(co 2005-2022 Mike Pall.
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.br
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\fBLuaJIT\fR is open source software, released under the MIT license.
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.SH SEE ALSO
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.PP
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More details in the provided HTML docs or at:
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.IR https://luajit.org
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.br
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More about the Lua language can be found at:
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.IR https://lua.org/docs.html
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.PP
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lua(1)
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