Perform a substring search of cask tokens and formula names for \fItext\fR\. If \fItext\fR is surrounded with slashes, then it is interpreted as a regular expression\. The search for \fItext\fR is extended online to \fBhomebrew/core\fR and \fBhomebrew/cask\fR\. If no search term is given, all locally available formulae are listed\.
Remove stale lock files and outdated downloads for formulae and casks, and remove old versions of installed formulae\. If arguments are specified, only do this for the specified formulae and casks\.
If \fB\-s\fR is passed, scrub the cache, including downloads for even the latest versions\. Note downloads for any installed formula or cask will still not be deleted\. If you want to delete those too: \fBrm \-rf "$(brew \-\-cache)"\fR
If \fB\-\-quiet\fR is passed, list only the names of commands without the header\. With \fB\-\-include\-aliases\fR, the aliases of internal commands will be included\.
Show Homebrew and system configuration useful for debugging\. If you file a bug report, you will likely be asked for this information if you do not provide it\.
By default, \fBdeps\fR shows required and recommended dependencies for \fIformulae\fR\. To include the \fB:build\fR type dependencies, pass \fB\-\-include\-build\fR\. Similarly, pass \fB\-\-include\-optional\fR to include \fB:optional\fR dependencies or \fB\-\-include\-test\fR to include (non\-recursive) \fB:test\fR dependencies\. To skip \fB:recommended\fR type dependencies, pass \fB\-\-skip\-recommended\fR\. To include requirements in addition to dependencies, pass \fB\-\-include\-requirements\fR\.
The \fIfilters\fR placeholder is any combination of options \fB\-\-include\-build\fR, \fB\-\-include\-optional\fR, \fB\-\-include\-test\fR, \fB\-\-skip\-recommended\fR, and \fB\-\-include\-requirements\fR as documented above\.
Show dependencies for installed or all available formulae\. Every line of output starts with the formula name, followed by a colon and all direct dependencies of that formula\.
The \fIfilters\fR placeholder is any combination of options \fB\-\-include\-build\fR, \fB\-\-include\-optional\fR, \fB\-\-include\-test\fR, and \fB\-\-skip\-recommended\fR as documented above\.
Search both name and description (\fB\-\-search\fR or \fB\-s\fR), just the names (\fB\-\-name\fR or \fB\-n\fR), or just the descriptions (\fB\-\-description\fR or \fB\-d\fR) for \fItext\fR\. If \fItext\fR is flanked by slashes, it is interpreted as a regular expression\. Formula descriptions are cached; the cache is created on the first search, making that search slower than subsequent ones\.
The options \fB\-\-name=\fR\fIname\fR and \fB\-\-version=\fR\fIversion\fR each take an argument and allow you to explicitly set the name and version of the package you are installing\.
Check your system for potential problems\. Doctor exits with a non\-zero status if any potential problems are found\. Please note that these warnings are just used to help the Homebrew maintainers with debugging if you file an issue\. If everything you use Homebrew for is working fine: please don\'t worry or file an issue; just ignore this\.
If \fB\-\-force\-bottle\fR is passed, download a bottle if it exists for the current or newest version of macOS, even if it would not be used during installation\.
Display Homebrew analytics data (provided neither \fBHOMEBREW_NO_ANALYTICS\fR or \fBHOMEBREW_NO_GITHUB_API\fR are set)
.
.IP
The value for \fBdays\fR must be \fB30\fR, \fB90\fR or \fB365\fR\. The default is \fB30\fR\.
.
.IP
The value for \fBcategory\fR must be \fBinstall\fR, \fBinstall\-on\-request\fR, \fBbuild\-error\fR or \fBos\-version\fR\. The default is \fBinstall\fR\.
If \fB\-\-debug\fR (or \fB\-d\fR) is passed and brewing fails, open an interactive debugging session with access to IRB or a shell inside the temporary build directory\.
If \fB\-\-ignore\-dependencies\fR is passed, skip installing any dependencies of any kind\. If they are not already present, the formula will probably fail to install\.
If \fB\-\-cc=\fR\fIcompiler\fR is passed, attempt to compile using \fIcompiler\fR\.\fIcompiler\fR should be the name of the compiler\'s executable, for instance \fBgcc\-7\fR for GCC 7\. In order to use LLVM\'s clang, use \fBllvm_clang\fR\. To specify the Apple\-provided clang, use \fBclang\fR\. This parameter will only accept compilers that are provided by Homebrew or bundled with macOS\. Please do not file issues if you encounter errors while using this flag\.
If \fB\-\-build\-from\-source\fR (or \fB\-s\fR) is passed, compile the specified \fIformula\fR from source even if a bottle is provided\. Dependencies will still be installed from bottles if they are available\.
If \fBHOMEBREW_BUILD_FROM_SOURCE\fR is set, regardless of whether \fB\-\-build\-from\-source\fR was passed, then both \fIformula\fR and the dependencies installed as part of this process are built from source even if bottles are available\.
If \fB\-\-force\-bottle\fR is passed, install from a bottle if it exists for the current or newest version of macOS, even if it would not normally be used for installation\.
If \fB\-\-interactive\fR (or \fB\-i\fR) is passed, download and patch \fIformula\fR, then open a shell\. This allows the user to run \fB\./configure \-\-help\fR and otherwise determine how to turn the software package into a Homebrew formula\.
Symlink all of \fIformula\fR\'s installed files into the Homebrew prefix\. This is done automatically when you install formulae but can be useful for DIY installations\.
If \fB\-\-dry\-run\fR or \fB\-n\fR is passed, Homebrew will list all files which would be linked or which would be deleted by \fBbrew link \-\-overwrite\fR, but will not actually link or delete any files\.
List all installed formulae\. If \fB\-\-full\-name\fR is passed, print formulae with fully\-qualified names\. If \fB\-\-full\-name\fR is not passed, other options (i\.e\.\fB\-1\fR, \fB\-l\fR, \fB\-t\fR and \fB\-r\fR) are passed to \fBls\fR which produces the actual output\.
List the installed files for \fIformulae\fR\. Combined with \fB\-\-verbose\fR, recursively list the contents of all subdirectories in each \fIformula\fR\'s keg\.
If \fB\-\-versions\fR is passed, show the version number for installed formulae, or only the specified formulae if \fIformulae\fR are given\. With \fB\-\-multiple\fR, only show formulae with multiple versions installed\.
If \fB\-\-pinned\fR is passed, show the versions of pinned formulae, or only the specified (pinned) formulae if \fIformulae\fR are given\. See also \fBpin\fR, \fBunpin\fR\.
If \fB\-\-force\fR (or \fB\-f\fR) is passed, then treat installed \fIformulae\fR and passed \fIformulae\fR like if they are from same taps and migrate them anyway\.
If \fB\-\-fetch\-HEAD\fR is passed, fetch the upstream repository to detect if the HEAD installation of the formula is outdated\. Otherwise, the repository\'s HEAD will be checked for updates when a new stable or devel version has been released\.
Pin the specified \fIformulae\fR, preventing them from being upgraded when issuing the \fBbrew upgrade\fR\fIformulae\fR command\. See also \fBunpin\fR\.
This can be useful for debugging issues across all formulae when making significant changes to \fBformula\.rb\fR, testing the performance of loading all formulae or to determine if any current formulae have Ruby issues\.
If \fBHOMEBREW_INSTALL_CLEANUP\fR is set then remove previously installed versions of upgraded \fIformulae\fR as well as the HOMEBREW_CACHE for that formula\.
Perform a substring search of cask tokens and formula names for \fItext\fR\. If \fItext\fR is surrounded with slashes, then it is interpreted as a regular expression\. The search for \fItext\fR is extended online to \fBhomebrew/core\fR and \fBhomebrew/cask\fR\.
Start a Homebrew build environment shell\. Uses our years\-battle\-hardened Homebrew build logic to help your \fB\./configure && make && make install\fR or even your \fBgem install\fR succeed\. Especially handy if you run Homebrew in an Xcode\-only configuration since it adds tools like \fBmake\fR to your \fBPATH\fR which otherwise build systems would not find\.
Lists of \fIfiles\fR, \fItaps\fR and \fIformulae\fR may not be combined\. If none are provided, \fBstyle\fR will run style checks on the whole Homebrew library, including core code and all formulae\.
Passing \fB\-\-only\-cops=\fR\fIcops\fR will check for violations of only the listed RuboCop \fIcops\fR, while \fB\-\-except\-cops=\fR\fIcops\fR will skip checking the listed \fIcops\fR\. For either option \fIcops\fR should be a comma\-separated list of cop names\.
With \fIURL\fR unspecified, taps a formula repository from GitHub using HTTPS\. Since so many taps are hosted on GitHub, this command is a shortcut for \fBbrew tap\fR\fIuser\fR\fB/\fR\fIrepo\fR\fBhttps://github\.com/\fR\fIuser\fR\fB/homebrew\-\fR\fIrepo\fR\.
With \fIURL\fR specified, taps a formula repository from anywhere, using any transport protocol that \fBgit\fR handles\. The one\-argument form of \fBtap\fR simplifies but also limits\. This two\-argument command makes no assumptions, so taps can be cloned from places other than GitHub and using protocols other than HTTPS, e\.g\., SSH, GIT, HTTP, FTP(S), RSYNC\.
By default, the repository is cloned as a shallow copy (\fB\-\-depth=1\fR), but if \fB\-\-full\fR is passed, a full clone will be used\. To convert a shallow copy to a full copy, you can retap passing \fB\-\-full\fR without first untapping\.
By default, only taps hosted on GitHub are auto\-updated (for performance reasons)\. If \fB\-\-force\-auto\-update\fR is passed, this tap will be auto\-updated even if it is not hosted on GitHub\.
\fBtap\fR is re\-runnable and exits successfully if there\'s nothing to do\. However, retapping with a different \fIURL\fR will cause an exception, so first \fBuntap\fR if you need to modify the \fIURL\fR\.
Remove symlinks for \fIformula\fR from the Homebrew prefix\. This can be useful for temporarily disabling a formula: \fBbrew unlink\fR\fIformula\fR\fB&&\fR\fIcommands\fR\fB&& brew link\fR\fIformula\fR
Unpack the source files for \fIformulae\fR into subdirectories of the current working directory\. If \fB\-\-destdir=\fR\fIpath\fR is given, the subdirectories will be created in the directory named by \fIpath\fR instead\.
If \fB\-\-git\fR (or \fB\-g\fR) is passed, a Git repository will be initialized in the unpacked source\. This is useful for creating patches for the software\.
Fetch the newest version of Homebrew and all formulae from GitHub using \fBgit\fR(1) and perform any necessary migrations\.
.
.IP
If \fB\-\-merge\fR is specified then \fBgit merge\fR is used to include updates (rather than \fBgit rebase\fR)\.
.
.IP
If \fB\-\-force\fR (or \fB\-f\fR) is specified then always do a slower, full update check even if unnecessary\.
.
.TP
\fBupdate\-reset\fR [\fIrepositories\fR]
Fetches and resets Homebrew and all tap repositories (or the specified \fBrepositories\fR) using \fBgit\fR(1) to their latest \fBorigin/master\fR\. Note this will destroy all your uncommitted or committed changes\.
If \fB\-\-fetch\-HEAD\fR is passed, fetch the upstream repository to detect if the HEAD installation of the formula is outdated\. Otherwise, the repository\'s HEAD will be checked for updates when a new stable or devel version has been released\.
Show the formulae that specify \fIformulae\fR as a dependency\. When given multiple formula arguments, show the intersection of formulae that use \fIformulae\fR\.
By default, \fBuses\fR shows all formulae that specify \fIformulae\fR as a required or recommended dependency\. To include the \fB:build\fR type dependencies, pass \fB\-\-include\-build\fR, to include the \fB:test\fR type dependencies, pass \fB\-\-include\-test\fR and to include \fB:optional\fR dependencies pass \fB\-\-include\-optional\fR\. To skip \fB:recommended\fR type dependencies, pass \fB\-\-skip\-recommended\fR\.
By default, \fBuses\fR shows usage of \fIformulae\fR by stable builds\. To find cases where \fIformulae\fR is used by development or HEAD build, pass \fB\-\-devel\fR or \fB\-\-HEAD\fR\.
Display Homebrew\'s Cellar path\.\fIDefault:\fR\fB$(brew \-\-prefix)/Cellar\fR, or if that directory doesn\'t exist, \fB$(brew \-\-repository)/Cellar\fR\.
Pass \fB\-\-shell=\fR\fIshell\fR to generate a list of environment variables for the specified shell, or \fB\-\-shell=auto\fR to detect the current shell\.
If the command\'s output is sent through a pipe and no shell is specified, the list is formatted for export to \fBbash\fR(1) unless \fB\-\-plain\fR is passed\.
.
.TP
\fB\-\-prefix\fR
Display Homebrew\'s install path\.\fIDefault:\fR\fB/usr/local\fR on macOS and \fB/home/linuxbrew/\.linuxbrew\fR on Linux
.
.TP
\fB\-\-prefix\fR\fIformula\fR
Display the location in the cellar where \fIformula\fR is or would be installed\.
.
.TP
\fB\-\-repository\fR
Display where Homebrew\'s \fB\.git\fR directory is located\.
.
.TP
\fB\-\-repository\fR\fIuser\fR\fB/\fR\fIrepo\fR
Display where tap \fIuser\fR\fB/\fR\fIrepo\fR\'s directory is located\.
.
.TP
\fB\-\-version\fR
Print the version number of Homebrew to standard output and exit\.
Check \fIformulae\fR for Homebrew coding style violations\. This should be run before submitting a new formula\. Will exit with a non\-zero status if any errors are found, which can be useful for implementing pre\-commit hooks\. If no \fIformulae\fR are provided, all of them are checked\.
Run various additional style checks to determine if a new formula is eligible for Homebrew\. This should be used when creating new formula and implies \fB\-\-strict\fR and \fB\-\-online\fR\.
.
.TP
\fB\-\-fix\fR
Fix style violations automatically using RuboCop\'s auto\-correct feature\.
.
.TP
\fB\-\-display\-cop\-names\fR
Include the RuboCop cop name for each violation in the output\.
Generate a bottle (binary package) from a formula that was installed with \fB\-\-build\-bottle\fR\. If the formula specifies a rebuild version, it will be incremented in the generated DSL\. Passing \fB\-\-keep\-old\fR will attempt to keep it at its original value, while \fB\-\-no\-rebuild\fR will remove it\.
Generate an updated bottle block for a formula and optionally merge it into the formula file\. Instead of a formula name, requires a JSON file generated with \fBbrew bottle \-\-json\fR\fIformula\fR\.
If a \fIURL\fR is specified, the \fISHA\-256\fR checksum of the new download should also be specified\. A best effort to determine the \fISHA\-256\fR and \fIformula\fR name will be made if either or both values are not supplied by the user\.
\fINote:\fR this command cannot be used to transition a formula from a URL\-and\-SHA\-256 style specification into a tag\-and\-revision style specification, nor vice versa\. It must use whichever style specification the preexisting formula already uses\.
Use the provided \fIversion\fR to override the value parsed from the URL or tag\. Note that \fB\-\-version=0\fR can be used to delete an existing version override from a formula if it has become redundant\.
Generate a formula for the downloadable file at \fIURL\fR and open it in the editor\. Homebrew will attempt to automatically derive the formula name and version, but if it fails, you\'ll have to make your own template\. The \fBwget\fR formula serves as a simple example\. For the complete API, see: \fIhttp://www\.rubydoc\.info/github/Homebrew/brew/master/Formula\fR
Homebrew will not download \fIURL\fR to the cache and will thus not add the SHA\-256 to the formula for you, nor will it check the GitHub API for GitHub projects (to fill out its description and homepage)\.
Open a formula in the editor set by \fBEDITOR\fR or \fBHOMEBREW_EDITOR\fR, or open the Homebrew repository for editing if no \fIformula\fR is provided\.
Look through repository history to find the most recent version of \fIformula\fR and create a copy in \fItap\fR\fB/Formula/\fR\fIformula\fR\fB@\fR\fIversion\fR\fB\.rb\fR\. If the tap is not installed yet, attempt to install/clone the tap before continuing\.
Return a failing status code if changes are detected in the manpage outputs\. This can be used for CI to be notified when the manpages are out of date\. Additionally, the date used in new manpages will match those in the existing manpages (to allow comparison without factoring in the date)\.
Get a patch from a GitHub commit or pull request and apply it to Homebrew\. Optionally, publish updated bottles for the formulae changed by the patch\.
~ The URL of a PR on GitHub, using either the web page or API URL formats\. In this form, the PR may be on Homebrew/brew, Homebrew/homebrew\-core or any tap\.
Print the merged pull requests on Homebrew/brew between two Git refs\. If no \fIprevious_tag\fR is provided it defaults to the latest tag\. If no \fIend_ref\fR is provided it defaults to \fBorigin/master\fR\.
Run the test method provided by an installed formula\. There is no standard output or return code, but generally it should notify the user if something is wrong with the installed formula\.
Check if all dependencies are installed in a Brewfile\. Missing dependencies are listed in verbose mode\.\fBcheck\fR will exit on the first category missing a dependency unless in verbose mode\.
If \fB\-\-no\-upgrade\fR is passed, don\'t run \fBbrew upgrade\fR on outdated dependencies\. Note they may still be upgraded by \fBbrew install\fR if needed\.
If \fB\-\-describe\fR is passed, output a description comment above each line\. This comment will not be output if the dependency does not have a description\.
If \fBsudo\fR is passed, operate on \fB/Library/LaunchDaemons\fR (started at boot)\. Otherwise, operate on \fB~/Library/LaunchAgents\fR (started at login)\.
Homebrew, like \fBgit\fR(1), supports external commands\. These are executable scripts that reside somewhere in the \fBPATH\fR, named \fBbrew\-\fR\fIcmdname\fR or \fBbrew\-\fR\fIcmdname\fR\fB\.rb\fR, which can be invoked like \fBbrew\fR\fIcmdname\fR\. This allows you to create your own commands without modifying Homebrew\'s internals\.
Sometimes a formula from a tapped repository may conflict with one in \fBhomebrew/core\fR\. You can still access these formulae by using a special syntax, e\.g\.\fBhomebrew/dupes/vim\fR or \fBhomebrew/versions/node4\fR\.
Homebrew can install formulae via URL, e\.g\.\fBhttps://raw\.githubusercontent\.com/Homebrew/homebrew\-core/master/Formula/git\.rb\fR, or from a local path\. It could point to either a formula file or a bottle\. In the case of a URL, the downloaded file will be cached for later use\.
Note that environment variables must have a value set to be detected\. For example, \fBexport HOMEBREW_NO_INSECURE_REDIRECT=1\fR rather than just \fBexport HOMEBREW_NO_INSECURE_REDIRECT\fR\.
If set, instructs Homebrew to prefix all download URLs, including those for bottles, with this variable\. For example, \fBHOMEBREW_ARTIFACT_DOMAIN=http://localhost:8080\fR will cause a formula with the URL \fBhttps://example\.com/foo\.tar\.gz\fR to instead download from \fBhttp://localhost:8080/example\.com/foo\.tar\.gz\fR\.
When using the \fBS3\fR download strategy, Homebrew will look in these variables for access credentials (see \fIhttps://docs\.aws\.amazon\.com/cli/latest/userguide/cli\-chap\-getting\-started\.html#cli\-environment\fR to retrieve these access credentials from AWS)\. If they are not set, the \fBS3\fR download strategy will download with a public (unsigned) URL\.
By default, Homebrew uses \fBhttps://homebrew\.bintray\.com/\fR as its download mirror for bottles\. If set, instructs Homebrew to instead use the specified URL\. For example, \fBHOMEBREW_BOTTLE_DOMAIN=http://localhost:8080\fR will cause all bottles to download from the prefix \fBhttp://localhost:8080/\fR\.
\fINote:\fR\fBbrew edit\fR will open all of Homebrew as discontinuous files and directories\. TextMate can handle this correctly in project mode, but many editors will do strange things in this case\.
If set, Homebrew will always use a Homebrew\-installed \fBcurl\fR rather than the system version\. Automatically set if the system version of \fBcurl\fR is too old\.
If set, Homebrew will always use a Homebrew\-installed \fBgit\fR rather than the system version\. Automatically set if the system version of \fBgit\fR is too old\.
A personal access token for the GitHub API, used by Homebrew for features such as \fBbrew search\fR\. You can create one at \fIhttps://github\.com/settings/tokens\fR\. If set, GitHub will allow you a greater number of API requests\. For more information, see: \fIhttps://developer\.github\.com/v3/#rate\-limiting\fR
If set, \fBbrew install\fR, \fBbrew upgrade\fR and \fBbrew reinstall\fR will remove previously installed version(s) of the installed/upgraded formulae\.
.
.IP
If \fBbrew cleanup\fR has not been run in 30 days then it will be run at this time\.
.
.IP
This will become the default in a later version of Homebrew\. To opt\-out see \fBHOMEBREW_NO_INSTALL_CLEANUP\fR\.
While ensuring your downloads are fully secure, this is likely to cause from\-source SourceForge, some GNU & GNOME based formulae to fail to download\.
If set, \fBbrew install\fR, \fBbrew upgrade\fR and \fBbrew reinstall\fR will never automatically remove the previously installed version(s) of the installed/upgraded formulae\.
When exporting from Subversion, Homebrew will use \fBHOMEBREW_SVN\fR if set, a Homebrew\-built Subversion if installed, or the system\-provided binary\.
If set, instructs Homebrew to use \fBHOMEBREW_TEMP\fR as the temporary directory for building packages\. This may be needed if your system temp directory and Homebrew prefix are on different volumes, as macOS has trouble moving symlinks across volumes when the target does not yet exist\.
Sets the comma\-separated list of hostnames and domain names that should be excluded from proxying by \fBcurl\fR, \fBgit\fR and \fBsvn\fR when downloading through Homebrew\.
Homebrew/brew\'s other current maintainers are Claudia Pellegrino, Michka Popoff, Shaun Jackman, Chongyu Zhu, Vitor Galvao, Misty De Meo, Gautham Goli, Markus Reiter, Steven Peters, Jonathan Chang and William Woodruff\.
Homebrew/homebrew\-core\'s other current maintainers are Claudia Pellegrino, Igor Kapkov, Michka Popoff, Shaun Jackman, Chongyu Zhu, Izaak Beekman, Sean Molenaar, Jan Viljanen, Jason Tedor, Viktor Szakats, FX Coudert, Thierry Moisan, Steven Peters, Misty De Meo and Tom Schoonjans\.
Former maintainers with significant contributions include JCount, commitay, Dominyk Tiller, Tim Smith, Baptiste Fontaine, Xu Cheng, Martin Afanasjew, Brett Koonce, Charlie Sharpsteen, Jack Nagel, Adam Vandenberg, Andrew Janke, Alex Dunn, neutric, Tomasz Pajor, Uladzislau Shablinski, Alyssa Ross, ilovezfs and Homebrew\'s creator: Max Howell\.
