--- name: "julia" section: "1" platform: "linux" package: "julia" version: "2:1.13.3-1" release: "Arch Linux 2026-11-01" platforms: ["linux"] url: "https://new.carta.tech/julia" --- # julia(1) a high-level, high-performance dynamic programming language for technical computing ## NAME julia - a high-level, high-performance dynamic programming language for technical computing ## SYNOPSIS **julia** \[OPTIONS...\] **--** \[PROGRAMFILE\] \[ARGS...\] If a Julia source file is given as a *PROGRAMFILE* (optionally followed by arguments in *ARGS*) Julia will execute the program and exit. ## DESCRIPTION Julia is a high-level, high-performance dynamic programming language for technical computing, with syntax that is familiar to users of other technical computing environments. It provides a sophisticated compiler, distributed parallel execution, numerical accuracy, and an extensive mathematical function library. The library, largely written in Julia itself, also integrates mature, best-of-breed C and Fortran libraries for linear algebra, random number generation, signal processing, and string processing. In addition, the Julia developer community is contributing a number of external packages through Julia's built-in package manager at a rapid pace. Julia programs are organized around multiple dispatch; by defining functions and overloading them for different combinations of argument types, which can also be user-defined. For a more in-depth discussion of the rationale and advantages of Julia over other systems, please see the online manual: https://docs.julialang.org ## COMMAND-LINE OPTIONS - \-v, --version Display version information - \-h, --help Print command-line options (this message) - \--help-hidden Print uncommon options not shown by \`-h\` - \--project\[=\/@.\] Set \ as the active project/environment. The default @. option will search through parent directories until a Project.toml or JuliaProject.toml file is found. - \-J, --sysimage \ Start up with the given system image file - \-H, --home \ Set location of \`julia\` executable - \--startup-file={yes\*\|no} Load \`JULIA\_DEPOT\_PATH/config/startup.jl\`; if \`JULIA\_DEPOT\_PATH\` environment variable is unset, load \`~/.julia/config/startup.jl\` - \--handle-signals={yes\*\|no} Enable or disable Julia's default signal handlers - \--sysimage-native-code={yes\*\|no} Use native code from system image if available - \--compiled-modules={yes\*\|no\|existing\|strict} Enable or disable incremental precompilation of modules. The \`existing\` option allows use of existing compiled modules that were previously precompiled, but disallows creation of new precompile files. The \`strict\` option is similar, but will error if no precompile file is found. - \--pkgimages={yes\*\|no\|existing} Enable or disable usage of native code caching in the form of pkgimages The \`existing\` option allows use of existing pkgimages but disallows creation of new ones - \-e, --eval \ Evaluate \ - \-E, --print \ Evaluate \ and display the result - \-m, --module \ \[args\] Run entry point of \`Package\` (\`@main\` function) with \`args' - \-L, --load \ Load \ immediately on all processors - \-t, --threads {auto\|N\[,auto\|M\]} Enable N\[+M\] threads; N threads are assigned to the \`default\` threadpool, and if M is specified, M threads are assigned to the \`interactive\` threadpool; \`auto\` tries to infer a useful default number of threads to use but the exact behavior might change in the future. Currently sets N to the number of CPUs assigned to this Julia process based on the OS-specific affinity assignment interface if supported (Linux and Windows) or to the number of CPU threads if not supported (MacOS) or if process affinity is not configured, and sets M to 1. - \--gcthreads=N\[,M\] Use N threads for the mark phase of GC and M (0 or 1) threads for the concurrent sweeping phase of GC. N is set to the number of compute threads and M is set to 0 if unspecified. - \-p, --procs {N\|auto} Integer value N launches N additional local worker processes \`auto\` launches as many workers as the number of local CPU threads (logical cores) - \--machine-file \ Run processes on hosts listed in \ - \-i, --interactive Interactive mode; REPL runs and \`isinteractive()\` is true - \-q, --quiet Quiet startup: no banner, suppress REPL warnings - \--banner={yes\|no\|short\|auto\*} Enable or disable startup banner - \--color={yes\|no\|auto\*} Enable or disable color text - \--history-file={yes\*\|no} Load or save history - \--depwarn={yes\|no\*\|error} Enable or disable syntax and method deprecation warnings (\`error\` turns warnings into errors) - \--warn-overwrite={yes\|no\*} Enable or disable method overwrite warnings - \--warn-scope={yes\*\|no} Enable or disable warning for ambiguous top-level scope - \-C, --cpu-target=\ Limit usage of CPU features up to \; set to \`help\` to see the available options - \-O, --optimize={0\|1\|2\*\|3} Set the optimization level (level 3 if \`-O\` is used without a level) - \--min-optlevel={0\*\|1\|2\|3} Set a lower bound on the optimization level - \-g, --debug-info={0\|1\*\|2} Set the level of debug info generation (level 2 if \`-g\` is used without a level) - \--inline={yes\*\|no} Control whether inlining is permitted, including overriding @inline declarations - \--check-bounds={yes\|no\|auto\*} Emit bounds checks always, never, or respect @inbounds declarations - \--math-mode={ieee\|user\*} Always follow \`ieee\` floating point semantics or respect \`@fastmath\` declarations - \--polly={yes\*\|no} Enable or disable the polyhedral optimizer Polly (overrides @polly declaration) - \--code-coverage\[={none\*\|user\|all}\] Count executions of source lines (omitting setting is equivalent to \`user\`) - \--code-coverage=@\ Count executions of source lines in a file or files under a given directory. A \`@\` must be placed before the path to indicate this option. A \`@\` with no path will track the current directory. - \--code-coverage=tracefile.info Append coverage information to the LCOV tracefile (filename supports format tokens) - \--track-allocation\[={none\*\|user\|all}\] Count bytes allocated by each source line (omitting setting is equivalent to \`user\`) - \--track-allocation=@\ Count bytes but only in files that fall under the given file path/directory. The \`@\` prefix is required to select this option. A \`@\` with no path will track the current directory. - \--bug-report=KIND Launch a bug report session. It can be used to start a REPL, run a script, or evaluate expressions. It first tries to use BugReporting.jl installed in current environment and fallbacks to the latest compatible BugReporting.jl if not. For more information, see --bug-report=help. - \--heap-size-hint=\ Forces garbage collection if memory usage is higher than the given value. The value may be specified as a number of bytes, optionally in units of KB, MB, GB, or TB, or as a percentage of physical memory with %. - \--compile={yes\*\|no\|all\|min} Enable or disable JIT compiler, or request exhaustive or minimal compilation - \--output-o \ Generate an object file (including system image data) - \--output-ji \ Generate a system image data file (.ji) - \--strip-metadata Remove docstrings and source location info from system image - \--strip-ir Remove IR (intermediate representation) of compiled functions - \--output-unopt-bc \ Generate unoptimized LLVM bitcode (.bc) - \--output-bc \ Generate LLVM bitcode (.bc) - \--output-asm \ Generate an assembly file (.s) - \--output-incremental={yes\|no\*} Generate an incremental output file (rather than complete) - \--trace-compile={stderr\|name} Print precompile statements for methods compiled during execution or save to stderr or a path. Methods that were recompiled are printed in yellow or with a trailing comment if color is not supported - \--trace-compile-timing= If --trace-compile is enabled show how long each took to compile in ms - \--trace-dispatch={stderr\|name} Print precompile statements for methods dispatched during execution or save to stderr or a path. - \--trace-eval\[={no\*\|loc\|full}\] Show top-level expressions being evaluated. \`loc\` shows location info only, \`full\` shows full expressions (omitting setting is equivalent to \`loc\`). Only shows the outermost expression being evaluated, not internal function calls. Can be controlled programmatically via Base.TRACE\_EVAL. - \--task-metrics={yes\|no\*} Enable the collection of per-task metrics. - \-image-codegen Force generate code in imaging mode - \--permalloc-pkgimg={yes\|no\*} Copy the data section of package images into memory ## FILES AND ENVIRONMENT See https://docs.julialang.org/en/v1/manual/environment-variables/ ## BUGS Please report any bugs using the GitHub issue tracker: https://github.com/julialang/julia/issues?state=open ## AUTHORS Contributors: https://github.com/JuliaLang/julia/graphs/contributors ## INTERNET RESOURCES Website: https://julialang.org/\ Documentation: https://docs.julialang.org/\ Install: https://julialang.org/install/ ## LICENSING Julia is an open-source project. It is made available under the MIT license.