path: root/share/man/man1/brew.1

.\" generated with Ronn/v0.7.3
.\" http://github.com/rtomayko/ronn/tree/0.7.3
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.TH "BREW" "1" "April 2016" "Homebrew" "brew"
.
.SH "NAME"
\fBbrew\fR \- The missing package manager for OS X
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.SH "SYNOPSIS"
\fBbrew\fR \fB\-\-version\fR
.
.br
\fBbrew\fR \fIcommand\fR [\fB\-\-verbose\fR|\fB\-v\fR] [\fIoptions\fR] [\fIformula\fR] \.\.\.
.
.SH "DESCRIPTION"
Homebrew is the easiest and most flexible way to install the UNIX tools Apple didn\'t include with OS X\.
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.SH "ESSENTIAL COMMANDS"
For the full command list, see the \fICOMMANDS\fR section\.
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.P
With \fB\-\-verbose\fR or \fB\-v\fR, many commands print extra debugging information\. Note that these flags should only appear after a command\.
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.TP
\fBinstall\fR \fIformula\fR
Install \fIformula\fR\.
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.TP
\fBremove\fR \fIformula\fR
Uninstall \fIformula\fR\.
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.TP
\fBupdate\fR
Fetch the newest version of Homebrew from GitHub using \fBgit\fR(1)\.
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.TP
\fBlist\fR
List all installed formulae\.
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.TP
\fBsearch\fR \fItext\fR|\fB/\fR\fItext\fR\fB/\fR
Perform a substring search of 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 some popular taps\. If no search term is given, all locally available formulae are listed\.
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.SH "COMMANDS"
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.TP
\fBaudit\fR [\fB\-\-strict\fR] [\fB\-\-online\fR] [\fIformulae\fR]
Check \fIformulae\fR for Homebrew coding style violations\. This should be run before submitting a new formula\.
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.IP
If no \fIformulae\fR are provided, all of them are checked\.
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.IP
If \fB\-\-strict\fR is passed, additional checks are run\. This should be used when creating for new formulae\.
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.IP
If \fB\-\-online\fR is passed, additional slower checks that require a network connection are run\. This should be used when creating for new formulae\.
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.IP
\fBaudit\fR exits with a non\-zero status if any errors are found\. This is useful, for instance, for implementing pre\-commit hooks\.
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.TP
\fBcat\fR \fIformula\fR
Display the source to \fIformula\fR\.
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.TP
\fBcleanup\fR [\fB\-\-prune=\fR\fIdays\fR] [\fB\-\-dry\-run\fR] [\fB\-s\fR] [\fIformulae\fR]
For all installed or specific formulae, remove any older versions from the cellar\. In addition, old downloads from the Homebrew download\-cache are deleted\.
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.IP
If \fB\-\-prune=\fR\fIdays\fR is specified, remove all cache files older than \fIdays\fR\.
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.IP
If \fB\-\-dry\-run\fR or \fB\-n\fR is passed, show what would be removed, but do not actually remove anything\.
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.IP
If \fB\-s\fR is passed, scrubs the cache, removing downloads for even the latest versions of formulae\. Note downloads for any installed formulae will still not be deleted\. If you want to delete those too: \fBrm \-rf $(brew \-\-cache)\fR
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.TP
\fBcommand\fR \fIcmd\fR
Display the path to the file which is used when invoking \fBbrew\fR \fIcmd\fR\.
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.TP
\fBcommands\fR [\fB\-\-quiet\fR [\fB\-\-include\-aliases\fR]]
Show a list of built\-in and external commands\.
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.IP
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\.
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.TP
\fBconfig\fR
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\.
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.TP
\fBcreate\fR \fIURL\fR [\fB\-\-autotools\fR|\fB\-\-cmake\fR] [\fB\-\-no\-fetch\fR] [\fB\-\-set\-name\fR \fIname\fR] [\fB\-\-set\-version\fR \fIversion\fR]
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 have a look at
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.IP
\fIhttp://www\.rubydoc\.info/github/Homebrew/brew/master/Formula\fR
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.IP
If \fB\-\-autotools\fR is passed, create a basic template for an Autotools\-style build\. If \fB\-\-cmake\fR is passed, create a basic template for a CMake\-style build\.
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.IP
If \fB\-\-no\-fetch\fR is passed, Homebrew will not download \fIURL\fR to the cache and will thus not add the SHA256 to the formula for you\.
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.IP
The options \fB\-\-set\-name\fR and \fB\-\-set\-version\fR each take an argument and allow you to explicitly set the name and version of the package you are creating\.
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.TP
\fBdeps\fR [\fB\-\-1\fR] [\fB\-n\fR] [\fB\-\-union\fR] [\fB\-\-tree\fR] [\fB\-\-all\fR] [\fB\-\-installed\fR] [\fB\-\-include\-build\fR] [\fB\-\-include\-optional\fR] [\fB\-\-skip\-recommended\fR] \fIformulae\fR
Show dependencies for \fIformulae\fR\. When given multiple formula arguments, show the intersection of dependencies for \fIformulae\fR, except when passed \fB\-\-tree\fR, \fB\-\-all\fR, or \fB\-\-installed\fR\.
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.IP
If \fB\-\-1\fR is passed, only show dependencies one level down, instead of recursing\.
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.IP
If \fB\-n\fR is passed, show dependencies in topological order\.
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.IP
If \fB\-\-union\fR is passed, show the union of dependencies for \fIformulae\fR, instead of the intersection\.
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.IP
If \fB\-\-tree\fR is passed, show dependencies as a tree\.
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.IP
If \fB\-\-all\fR is passed, show dependencies for all formulae\.
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.IP
If \fB\-\-installed\fR is passed, show dependencies for all installed formulae\.
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.IP
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\. To skip \fB:recommended\fR type dependencies, pass \fB\-\-skip\-recommended\fR\.
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.TP
\fBdesc\fR \fIformula\fR
Display \fIformula\fR\'s name and one\-line description\.
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.TP
\fBdesc\fR [\fB\-s\fR|\fB\-n\fR|\fB\-d\fR] \fIpattern\fR
Search both name and description (\fB\-s\fR), just the names (\fB\-n\fR), or just the descriptions (\fB\-d\fR) for \fB<pattern>\fR\. \fB<pattern>\fR is by default interpreted as a literal string; if flanked by slashes, it is instead interpreted as a regular expression\. Formula descriptions are cached; the cache is created on the first search, making that search slower than subsequent ones\.
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.TP
\fBdiy\fR [\fB\-\-name=\fR\fIname\fR] [\fB\-\-version=\fR\fIversion\fR]
Automatically determine the installation prefix for non\-Homebrew software\.
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.IP
Using the output from this command, you can install your own software into the Cellar and then link it into Homebrew\'s prefix with \fBbrew link\fR\.
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.IP
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\.
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.TP
\fBdoctor\fR
Check your system for potential problems\. Doctor exits with a non\-zero status if any problems are found\.
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.TP
\fBedit\fR
Open all of Homebrew for editing\.
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.TP
\fBedit\fR \fIformula\fR
Open \fIformula\fR in the editor\.
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.TP
\fBfetch\fR [\fB\-\-force\fR] [\fB\-v\fR] [\fB\-\-devel\fR|\fB\-\-HEAD\fR] [\fB\-\-deps\fR] [\fB\-\-build\-from\-source\fR|\fB\-\-force\-bottle\fR] \fIformulae\fR
Download the source packages for the given \fIformulae\fR\. For tarballs, also print SHA\-256 checksums\.
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.IP
If \fB\-\-HEAD\fR or \fB\-\-devel\fR is passed, fetch that version instead of the stable version\.
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.IP
If \fB\-v\fR is passed, do a verbose VCS checkout, if the URL represents a CVS\. This is useful for seeing if an existing VCS cache has been updated\.
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.IP
If \fB\-\-force\fR is passed, remove a previously cached version and re\-fetch\.
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.IP
If \fB\-\-deps\fR is passed, also download dependencies for any listed \fIformulae\fR\.
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.IP
If \fB\-\-build\-from\-source\fR is passed, download the source rather than a bottle\.
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.IP
If \fB\-\-force\-bottle\fR is passed, download a bottle if it exists for the current version of OS X, even if it would not be used during installation\.
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.TP
\fBhome\fR
Open Homebrew\'s own homepage in a browser\.
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.TP
\fBhome\fR \fIformula\fR
Open \fIformula\fR\'s homepage in a browser\.
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.TP
\fBinfo\fR \fIformula\fR
Display information about \fIformula\fR\.
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.TP
\fBinfo\fR \fB\-\-github\fR \fIformula\fR
Open a browser to the GitHub History page for formula \fIformula\fR\.
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.IP
To view formula history locally: \fBbrew log \-p <formula>\fR\.
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.TP
\fBinfo\fR \fB\-\-json=\fR\fIversion\fR (\fB\-\-all\fR|\fB\-\-installed\fR|\fIformulae\fR)
Print a JSON representation of \fIformulae\fR\. Currently the only accepted value for \fIversion\fR is \fBv1\fR\.
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.IP
Pass \fB\-\-all\fR to get information on all formulae, or \fB\-\-installed\fR to get information on all installed formulae\.
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.IP
See the docs for examples of using the JSON: \fIhttps://github\.com/Homebrew/brew/blob/master/share/doc/homebrew/Querying\-Brew\.md\fR
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.TP
\fBinstall\fR [\fB\-\-debug\fR] [\fB\-\-env=\fR\fIstd\fR|\fIsuper\fR] [\fB\-\-ignore\-dependencies\fR] [\fB\-\-only\-dependencies\fR] [\fB\-\-cc=\fR\fIcompiler\fR] [\fB\-\-build\-from\-source\fR|\fB\-\-force\-bottle\fR] [\fB\-\-devel\fR|\fB\-\-HEAD\fR] [\fB\-\-keep\-tmp\fR] \fIformula\fR
Install \fIformula\fR\.
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.IP
\fIformula\fR is usually the name of the formula to install, but it can be specified several different ways\. See \fISPECIFYING FORMULAE\fR\.
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.IP
If \fB\-\-debug\fR is passed and brewing fails, open an interactive debugging session with access to IRB or a shell inside the temporary build directory\.
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.IP
If \fB\-\-env=std\fR is passed, use the standard build environment instead of superenv\.
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.IP
If \fB\-\-env=super\fR is passed, use superenv even if the formula specifies the standard build environment\.
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.IP
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\.
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.IP
If \fB\-\-only\-dependencies\fR is passed, install the dependencies with specified options but do not install the specified formula\.
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.IP
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\-4\.2\fR for Apple\'s GCC 4\.2, or \fBgcc\-4\.9\fR for a Homebrew\-provided GCC 4\.9\.
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.IP
If \fB\-\-build\-from\-source\fR is passed, compile from source even if a bottle is provided for \fIformula\fR\.
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.IP
If \fB\-\-force\-bottle\fR is passed, install from a bottle if it exists for the current version of OS X, even if custom options are given\.
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.IP
If \fB\-\-devel\fR is passed, and \fIformula\fR defines it, install the development version\.
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.IP
If \fB\-\-HEAD\fR is passed, and \fIformula\fR defines it, install the HEAD version, aka master, trunk, unstable\.
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.IP
If \fB\-\-keep\-tmp\fR is passed, the temporary files created for the test are not deleted\.
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.IP
To install a newer version of HEAD use \fBbrew rm <foo> && brew install \-\-HEAD <foo>\fR\.
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.TP
\fBinstall\fR \fB\-\-interactive\fR [\fB\-\-git\fR] \fIformula\fR
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\.
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.IP
If \fB\-\-git\fR is passed, Homebrew will create a Git repository, useful for creating patches to the software\.
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.TP
\fBirb\fR [\fB\-\-examples\fR]
Enter the interactive Homebrew Ruby shell\.
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.IP
If \fB\-\-examples\fR is passed, several examples will be shown\.
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.TP
\fBleaves\fR
Show installed formulae that are not dependencies of another installed formula\.
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.TP
\fBln\fR, \fBlink\fR [\fB\-\-overwrite\fR] [\fB\-\-dry\-run\fR] [\fB\-\-force\fR] \fIformula\fR
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\.
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.IP
If \fB\-\-overwrite\fR is passed, Homebrew will delete files which already exist in the prefix while linking\.
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.IP
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\.
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.IP
If \fB\-\-force\fR is passed, Homebrew will allow keg\-only formulae to be linked\.
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.TP
\fBlinkapps\fR [\fB\-\-local\fR] [\fIformulae\fR]
Find installed formulae that provide \fB\.app\fR\-style OS X apps and symlink them into \fB/Applications\fR, allowing for easier access\.
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.IP
If no \fIformulae\fR are provided, all of them will have their apps symlinked\.
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.IP
If provided, \fB\-\-local\fR will symlink them into the user\'s \fB~/Applications\fR directory instead of the system directory\.
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.TP
\fBlist\fR, \fBls\fR [\fB\-\-full\-name\fR]
List all installed formulae\. If \fB\-\-full\-name\fR is passed, print formulae with full\-qualified names\.
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.TP
\fBlist\fR, \fBls\fR \fB\-\-unbrewed\fR
List all files in the Homebrew prefix not installed by Homebrew\.
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.TP
\fBlist\fR, \fBls\fR [\fB\-\-versions\fR [\fB\-\-multiple\fR]] [\fB\-\-pinned\fR] [\fIformulae\fR]
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\.
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.IP
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\.
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.IP
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\.
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.TP
\fBlog\fR [\fBgit\-log\-options\fR] \fIformula\fR \.\.\.
Show the git log for the given formulae\. Options that \fBgit\-log\fR(1) recognizes can be passed before the formula list\.
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.TP
\fBmigrate\fR [\fB\-\-force\fR] \fIformulae\fR
Migrate renamed packages to new name, where \fIformulae\fR are old names of packages\.
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.IP
If \fB\-\-force\fR is passed, then treat installed \fIformulae\fR and passed \fIformulae\fR like if they are from same taps and migrate them anyway\.
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.TP
\fBmissing\fR [\fIformulae\fR]
Check the given \fIformulae\fR for missing dependencies\.
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.IP
If no \fIformulae\fR are given, check all installed brews\.
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.TP
\fBoptions\fR [\fB\-\-compact\fR] (\fB\-\-all\fR|\fB\-\-installed\fR|\fIformulae\fR)
Display install options specific to \fIformulae\fR\.
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.IP
If \fB\-\-compact\fR is passed, show all options on a single line separated by spaces\.
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.IP
If \fB\-\-all\fR is passed, show options for all formulae\.
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.IP
If \fB\-\-installed\fR is passed, show options for all installed formulae\.
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.TP
\fBoutdated\fR [\fB\-\-quiet\fR|\fB\-\-verbose\fR|\fB\-\-json=v1\fR]
Show formulae that have an updated version available\.
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.IP
By default, version information is displayed in interactive shells, and suppressed otherwise\.
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.IP
If \fB\-\-quiet\fR is passed, list only the names of outdated brews (takes precedence over \fB\-\-verbose\fR)\.
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.IP
If \fB\-\-verbose\fR is passed, display detailed version information\.
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.IP
If \fB\-\-json=\fR\fIversion\fR is passed, the output will be in JSON format\. The only valid version is \fBv1\fR\.
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.TP
\fBpin\fR \fIformulae\fR
Pin the specified \fIformulae\fR, preventing them from being upgraded when issuing the \fBbrew upgrade\fR command\. See also \fBunpin\fR\.
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.TP
\fBprune\fR [\fB\-\-dry\-run\fR]
Remove dead symlinks from the Homebrew prefix\. This is generally not needed, but can be useful when doing DIY installations\. Also remove broken app symlinks from \fB/Applications\fR and \fB~/Applications\fR that were previously created by \fBbrew linkapps\fR\.
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.IP
If \fB\-\-dry\-run\fR or \fB\-n\fR is passed, show what would be removed, but do not actually remove anything\.
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.TP
\fBreinstall\fR \fIformula\fR
Uninstall then install \fIformula\fR
.
.TP
\fBsearch\fR, \fB\-S\fR
Display all locally available formulae for brewing (including tapped ones)\. No online search is performed if called without arguments\.
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.TP
\fBsearch\fR, \fB\-S\fR \fItext\fR|\fB/\fR\fItext\fR\fB/\fR
Perform a substring search of 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 some popular taps\.
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.TP
\fBsearch\fR (\fB\-\-debian\fR|\fB\-\-fedora\fR|\fB\-\-fink\fR|\fB\-\-macports\fR|\fB\-\-opensuse\fR|\fB\-\-ubuntu\fR) \fItext\fR
Search for \fItext\fR in the given package manager\'s list\.
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.TP
\fBsh\fR [\fB\-\-env=std\fR]
Instantiate a Homebrew build environment\. 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\.
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.TP
\fBswitch\fR \fIname\fR \fIversion\fR
Symlink all of the specific \fIversion\fR of \fIname\fR\'s install to Homebrew prefix\.
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.TP
\fBtap\fR
List all installed taps\.
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.TP
\fBtap\fR [\fB\-\-full\fR] \fIuser\fR\fB/\fR\fIrepo\fR [\fIURL\fR]
Tap a formula repository\.
.
.IP
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 \fBtap <user>/<repo> https://github\.com/<user>/homebrew\-<repo>\fR\.
.
.IP
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\.
.
.IP
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\.
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.IP
\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\.
.
.TP
\fBtap\fR \fB\-\-repair\fR
Migrate tapped formulae from symlink\-based to directory\-based structure\.
.
.TP
\fBtap\fR \fB\-\-list\-official\fR
List all official taps\.
.
.TP
\fBtap\fR \fB\-\-list\-pinned\fR
List all pinned taps\.
.
.TP
\fBtap\-info\fR \fItap\fR
Display information about \fItap\fR\.
.
.TP
\fBtap\-info\fR \fB\-\-json=\fR\fIversion\fR (\fB\-\-installed\fR|\fItaps\fR)
Print a JSON representation of \fItaps\fR\. Currently the only accepted value for \fIversion\fR is \fBv1\fR\.
.
.IP
Pass \fB\-\-installed\fR to get information on installed taps\.
.
.IP
See the docs for examples of using the JSON: \fIhttps://github\.com/Homebrew/brew/blob/master/share/doc/homebrew/Querying\-Brew\.md\fR
.
.TP
\fBtap\-pin\fR \fItap\fR
Pin \fItap\fR, prioritizing its formulae over core when formula names are supplied by the user\. See also \fBtap\-unpin\fR\.
.
.TP
\fBtap\-unpin\fR \fItap\fR
Unpin \fItap\fR so its formulae are no longer prioritized\. See also \fBtap\-pin\fR\.
.
.TP
\fBtest\fR [\fB\-\-devel\fR|\fB\-\-HEAD\fR] [\fB\-\-debug\fR] [\fB\-\-keep\-tmp\fR] \fIformula\fR
A few formulae provide a test method\. \fBbrew test\fR \fIformula\fR runs this test method\. There is no standard output or return code, but it should generally indicate to the user if something is wrong with the installed formula\.
.
.IP
To test the development or head version of a formula, use \fB\-\-devel\fR or \fB\-\-HEAD\fR\.
.
.IP
If \fB\-\-debug\fR is passed and the test fails, an interactive debugger will be launched with access to IRB or a shell inside the temporary test directory\.
.
.IP
If \fB\-\-keep\-tmp\fR is passed, the temporary files created for the test are not deleted\.
.
.IP
Example: \fBbrew install jruby && brew test jruby\fR
.
.TP
\fBuninstall\fR, \fBrm\fR, \fBremove\fR [\fB\-\-force\fR] \fIformula\fR
Uninstall \fIformula\fR\.
.
.IP
If \fB\-\-force\fR is passed, and there are multiple versions of \fIformula\fR installed, delete all installed versions\.
.
.TP
\fBunlink\fR [\fB\-\-dry\-run\fR] \fIformula\fR
Remove symlinks for \fIformula\fR from the Homebrew prefix\. This can be useful for temporarily disabling a formula: \fBbrew unlink foo && commands && brew link foo\fR\.
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.IP
If \fB\-\-dry\-run\fR or \fB\-n\fR is passed, Homebrew will list all files which would be unlinked, but will not actually unlink or delete any files\.
.
.TP
\fBunlinkapps\fR [\fB\-\-local\fR] [\fB\-\-dry\-run\fR] [\fIformulae\fR]
Remove symlinks created by \fBbrew linkapps\fR from \fB/Applications\fR\.
.
.IP
If no \fIformulae\fR are provided, all linked apps will be removed\.
.
.IP
If provided, \fB\-\-local\fR will remove symlinks from the user\'s \fB~/Applications\fR directory instead of the system directory\.
.
.IP
If \fB\-\-dry\-run\fR or \fB\-n\fR is passed, Homebrew will list all symlinks which would be removed, but will not actually delete any files\.
.
.TP
\fBunpack\fR [\fB\-\-git\fR|\fB\-\-patch\fR] [\fB\-\-destdir=\fR\fIpath\fR] \fIformulae\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 \fB<path>\fR instead\.
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.IP
If \fB\-\-patch\fR is passed, patches for \fIformulae\fR will be applied to the unpacked source\.
.
.IP
If \fB\-\-git\fR is passed, a Git repository will be initalized in the unpacked source\. This is useful for creating patches for the software\.
.
.TP
\fBunpin\fR \fIformulae\fR
Unpin \fIformulae\fR, allowing them to be upgraded by \fBbrew upgrade\fR\. See also \fBpin\fR\.
.
.TP
\fBuntap\fR \fItap\fR
Remove a tapped repository\.
.
.TP
\fBupdate\fR [\fB\-\-rebase\fR]
Fetch the newest version of Homebrew and all formulae from GitHub using \fBgit\fR(1)\.
.
.IP
If \fB\-\-rebase\fR is specified then \fBgit pull \-\-rebase\fR is used\.
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.TP
\fBupgrade\fR [\fIinstall\-options\fR] [\fB\-\-cleanup\fR] [\fIformulae\fR]
Upgrade outdated, unpinned brews\.
.
.IP
Options for the \fBinstall\fR command are also valid here\.
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.IP
If \fB\-\-cleanup\fR is specified then remove previously installed \fIformula\fR version(s)\.
.
.IP
If \fIformulae\fR are given, upgrade only the specified brews (but do so even if they are pinned; see \fBpin\fR, \fBunpin\fR)\.
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.TP
\fBuses\fR [\fB\-\-installed\fR] [\fB\-\-recursive\fR] [\fB\-\-include\-build\fR] [\fB\-\-include\-optional\fR] [\fB\-\-skip\-recommended\fR] [\fB\-\-devel\fR|\fB\-\-HEAD\fR] \fIformulae\fR
Show the formulae that specify \fIformulae\fR as a dependency\. When given multiple formula arguments, show the intersection of formulae that use \fIformulae\fR\.
.
.IP
Use \fB\-\-recursive\fR to resolve more than one level of dependencies\.
.
.IP
If \fB\-\-installed\fR is passed, only list installed formulae\.
.
.IP
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\. Similarly, pass \fB\-\-include\-optional\fR to include \fB:optional\fR dependencies\. To skip \fB:recommended\fR type dependencies, pass \fB\-\-skip\-recommended\fR\.
.
.IP
By default, \fBuses\fR shows usages of \fBformula\fR by stable builds\. To find cases where \fBformula\fR is used by development or HEAD build, pass \fB\-\-devel\fR or \fB\-\-HEAD\fR\.
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.TP
\fB\-\-cache\fR
Display Homebrew\'s download cache\. See also \fBHOMEBREW_CACHE\fR\.
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.TP
\fB\-\-cache\fR \fIformula\fR
Display the file or directory used to cache \fIformula\fR\.
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.TP
\fB\-\-cellar\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\.
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.TP
\fB\-\-cellar\fR \fIformula\fR
Display the location in the cellar where \fIformula\fR would be installed, without any sort of versioned directory as the last path\.
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.TP
\fB\-\-env\fR
Show a summary of the Homebrew build environment\.
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.TP
\fB\-\-prefix\fR
Display Homebrew\'s install path\. \fIDefault:\fR \fB/usr/local\fR
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.TP
\fB\-\-prefix\fR \fIformula\fR
Display the location in the cellar where \fIformula\fR is or would be installed\.
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.TP
\fB\-\-repository\fR
Display where Homebrew\'s \fB\.git\fR directory is located\. For standard installs, the \fBprefix\fR and \fBrepository\fR are the same directory\.
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.TP
\fB\-\-repository\fR \fIuser\fR\fB/\fR\fIrepo\fR
Display where tap \fIuser\fR\fB/\fR\fIrepo\fR\'s directory is located\.
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.TP
\fB\-\-version\fR
Print the version number of brew to standard error and exit\.
.
.SH "EXTERNAL COMMANDS"
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\.
.
.P
Instructions for creating your own commands can be found in the docs: \fIhttps://github\.com/Homebrew/brew/blob/master/share/doc/homebrew/External\-Commands\.md\fR
.
.SH "SPECIFYING FORMULAE"
Many Homebrew commands accept one or more \fIformula\fR arguments\. These arguments can take several different forms:
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.TP
The name of a formula
e\.g\. \fBgit\fR, \fBnode\fR, \fBwget\fR\.
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.TP
The fully\-qualified name of a tapped formula
Sometimes a formula from a tapped repository may conflict with one in \fBHomebrew/homebrew\fR\. You can still access these formulae by using a special syntax, e\.g\. \fBhomebrew/dupes/vim\fR or \fBhomebrew/versions/node4\fR\.
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.TP
An arbitrary URL
Homebrew can install formulae via URL, e\.g\. \fBhttps://raw\.github\.com/Homebrew/homebrew\-core/master/Formula/git\.rb\fR\. The formula file will be cached for later use\.
.
.SH "ENVIRONMENT"
.
.TP
\fBAWS_ACCESS_KEY_ID\fR, \fBAWS_SECRET_ACCESS_KEY\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\.
.
.TP
\fBBROWSER\fR
If set, and \fBHOMEBREW_BROWSER\fR is not, use \fBBROWSER\fR as the web browser when opening project homepages\.
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.TP
\fBEDITOR\fR
If set, and \fBHOMEBREW_EDITOR\fR and \fBVISUAL\fR are not, use \fBEDITOR\fR as the text editor\.
.
.TP
\fBGIT\fR
When using Git, Homebrew will use \fBGIT\fR if set, a Homebrew\-built Git if installed, or the system\-provided binary\.
.
.IP
Set this to force Homebrew to use a particular git binary\.
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.TP
\fBHOMEBREW_BOTTLE_DOMAIN\fR
If set, instructs Homebrew to use the given URL as a download mirror for bottles\.
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.TP
\fBHOMEBREW_BROWSER\fR
If set, uses this setting as the browser when opening project homepages, instead of the OS default browser\.
.
.TP
\fBHOMEBREW_BUILD_FROM_SOURCE\fR
If set, instructs Homebrew to compile from source even when a formula provides a bottle\. This environment variable is intended for use by Homebrew developers\. Please do not file issues if you encounter errors when using this environment variable\.
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.TP
\fBHOMEBREW_CACHE\fR
If set, instructs Homebrew to use the given directory as the download cache\.
.
.IP
\fIDefault:\fR \fB~/Library/Caches/Homebrew\fR if it exists; otherwise, \fB/Library/Caches/Homebrew\fR\.
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.TP
\fBHOMEBREW_CURL_VERBOSE\fR
If set, Homebrew will pass \fB\-\-verbose\fR when invoking \fBcurl\fR(1)\.
.
.TP
\fBHOMEBREW_DEBUG\fR
If set, any commands that can emit debugging information will do so\.
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.TP
\fBHOMEBREW_DEBUG_INSTALL\fR
When \fBbrew install \-d\fR or \fBbrew install \-i\fR drops into a shell, \fBHOMEBREW_DEBUG_INSTALL\fR will be set to the name of the formula being brewed\.
.
.TP
\fBHOMEBREW_DEBUG_PREFIX\fR
When \fBbrew install \-d\fR or \fBbrew install \-i\fR drops into a shell, \fBHOMEBREW_DEBUG_PREFIX\fR will be set to the target prefix in the Cellar of the formula being brewed\.
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.TP
\fBHOMEBREW_DEVELOPER\fR
If set, Homebrew will print warnings that are only relevant to Homebrew developers (active or budding)\.
.
.TP
\fBHOMEBREW_EDITOR\fR
If set, Homebrew will use this editor when editing a single formula, or several formulae in the same directory\.
.
.IP
\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\.
.
.TP
\fBHOMEBREW_GITHUB_API_TOKEN\fR
A personal access token for the GitHub API, which you can create at \fIhttps://github\.com/settings/tokens\fR\. If set, GitHub will allow you a greater number of API requests\. See \fIhttps://developer\.github\.com/v3/#rate\-limiting\fR for more information\. Homebrew uses the GitHub API for features such as \fBbrew search\fR\.
.
.IP
\fINote:\fR Homebrew doesn\'t require permissions for any of the scopes\.
.
.TP
\fBHOMEBREW_LOGS\fR
If set, Homebrew will use the given directory to store log files\.
.
.TP
\fBHOMEBREW_MAKE_JOBS\fR
If set, instructs Homebrew to use the value of \fBHOMEBREW_MAKE_JOBS\fR as the number of parallel jobs to run when building with \fBmake\fR(1)\.
.
.IP
\fIDefault:\fR the number of available CPU cores\.
.
.TP
\fBHOMEBREW_NO_ANALYTICS\fR
If set, Homebrew will not send analytics\. See: \fIhttps://github\.com/Homebrew/brew/blob/master/share/doc/homebrew/Analytics\.md#analytics\fR
.
.IP
\fINote:\fR Homebrew currently disables analytics by default\.
.
.TP
\fBHOMEBREW_NO_EMOJI\fR
If set, Homebrew will not print the \fBHOMEBREW_INSTALL_BADGE\fR on a successful build\.
.
.IP
\fINote:\fR Homebrew will only try to print emoji on Lion or newer\.
.
.TP
\fBHOMEBREW_NO_INSECURE_REDIRECT\fR
If set, Homebrew will not permit redirects from secure HTTPS to insecure HTTP\.
.
.IP
While ensuring your downloads are fully secure, this is likely to cause from\-source Sourceforge & GNOME based formulae to fail to download\.
.
.IP
Apache formulae are currently unaffected by this variable and can redirect to plaintext\.
.
.TP
\fBHOMEBREW_NO_GITHUB_API\fR
If set, Homebrew will not use the GitHub API for e\.g searches or fetching relevant issues on a failed install\.
.
.TP
\fBHOMEBREW_INSTALL_BADGE\fR
Text printed before the installation summary of each successful build\. Defaults to the beer emoji\.
.
.TP
\fBHOMEBREW_SVN\fR
When exporting from Subversion, Homebrew will use \fBHOMEBREW_SVN\fR if set, a Homebrew\-built Subversion if installed, or the system\-provided binary\.
.
.IP
Set this to force Homebrew to use a particular \fBsvn\fR binary\.
.
.TP
\fBHOMEBREW_TEMP\fR
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 OS X has trouble moving symlinks across volumes when the target does not yet exist\.
.
.IP
This issue typically occurs when using FileVault or custom SSD configurations\.
.
.TP
\fBHOMEBREW_VERBOSE\fR
If set, Homebrew always assumes \fB\-\-verbose\fR when running commands\.
.
.TP
\fBVISUAL\fR
If set, and \fBHOMEBREW_EDITOR\fR is not, use \fBVISUAL\fR as the text editor\.
.
.SH "USING HOMEBREW BEHIND A PROXY"
Homebrew uses several commands for downloading files (e\.g\. \fBcurl\fR, \fBgit\fR, \fBsvn\fR)\. Many of these tools can download via a proxy\. It\'s common for these tools to read proxy parameters from environment variables\.
.
.P
For the majority of cases setting \fBhttp_proxy\fR is enough\. You can set this in your shell profile, or you can use it before a brew command:
.
.IP "" 4
.
.nf

http_proxy=http://<host>:<port> brew install foo
.
.fi
.
.IP "" 0
.
.P
If your proxy requires authentication:
.
.IP "" 4
.
.nf

http_proxy=http://<user>:<password>@<host>:<port> brew install foo
.
.fi
.
.IP "" 0
.
.SH "SEE ALSO"
Homebrew Documentation: \fIhttps://github\.com/Homebrew/brew/blob/master/share/doc/homebrew/\fR
.
.P
\fBgit\fR(1), \fBgit\-log\fR(1)
.
.SH "AUTHORS"
Homebrew\'s current maintainers are Misty De Meo, Andrew Janke, Xu Cheng, Mike McQuaid, Baptiste Fontaine, Brett Koonce, Martin Afanasjew, Dominyk Tiller, Tim Smith and Alex Dunn\.
.
.P
Former maintainers with significant contributions include Jack Nagel, Adam Vandenberg and Homebrew\'s creator: Max Howell\.
.
.SH "BUGS"
See our issues on GitHub:
.
.IP "\(bu" 4
Homebrew/brew \fIhttps://github\.com/Homebrew/brew/issues\fR
.
.IP "\(bu" 4
Homebrew/homebrew\-core \fIhttps://github\.com/Homebrew/homebrew\-core/issues\fR
.
.IP "" 0