mirror of
https://github.com/golang/go.git
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3810f5bfed
When running locally, it will redirect properly to golang.org/dl/ (see https://github.com/golang/tools/blob/master/cmd/godoc/dl.go). This is to support domains in prod other than golang.org. Change-Id: I6d3051fcd7e06a86442324a64d781d8ad95c624f Reviewed-on: https://go-review.googlesource.com/88679 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
321 lines
9.3 KiB
HTML
321 lines
9.3 KiB
HTML
<!--{
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"Title": "Getting Started",
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"Path": "/doc/install"
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}-->
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<div class="hideFromDownload">
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<h2 id="download">Download the Go distribution</h2>
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<p>
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<a href="/dl/" id="start" class="download">
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<span class="big">Download Go</span>
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<span class="desc">Click here to visit the downloads page</span>
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</a>
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</p>
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<p>
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<a href="/dl/" target="_blank">Official binary
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distributions</a> are available for the FreeBSD (release 10-STABLE and above),
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Linux, Mac OS X (10.8 and above), and Windows operating systems and
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the 32-bit (<code>386</code>) and 64-bit (<code>amd64</code>) x86 processor
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architectures.
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</p>
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<p>
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If a binary distribution is not available for your combination of operating
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system and architecture, try
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<a href="/doc/install/source">installing from source</a> or
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<a href="/doc/install/gccgo">installing gccgo instead of gc</a>.
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</p>
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<h2 id="requirements">System requirements</h2>
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<p>
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Go <a href="/dl/">binary distributions</a> are available for these supported operating systems and architectures.
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Please ensure your system meets these requirements before proceeding.
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If your OS or architecture is not on the list, you may be able to
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<a href="/doc/install/source">install from source</a> or
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<a href="/doc/install/gccgo">use gccgo instead</a>.
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</p>
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<table class="codetable" frame="border" summary="requirements">
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<tr>
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<th align="center">Operating system</th>
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<th align="center">Architectures</th>
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<th align="center">Notes</th>
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</tr>
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<tr><td colspan="3"><hr></td></tr>
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<tr><td>FreeBSD 10.3 or later</td> <td>amd64, 386</td> <td>Debian GNU/kFreeBSD not supported</td></tr>
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<tr valign='top'><td>Linux 2.6.23 or later with glibc</td> <td>amd64, 386, arm, arm64,<br>s390x, ppc64le</td> <td>CentOS/RHEL 5.x not supported.<br>Install from source for other libc.</td></tr>
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<tr><td>macOS 10.8 or later</td> <td>amd64</td> <td>use the clang or gcc<sup>†</sup> that comes with Xcode<sup>‡</sup> for <code>cgo</code> support</td></tr>
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<tr><td>Windows XP SP2 or later</td> <td>amd64, 386</td> <td>use MinGW gcc<sup>†</sup>. No need for cygwin or msys.</td></tr>
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</table>
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<p>
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<sup>†</sup>A C compiler is required only if you plan to use
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<a href="/cmd/cgo">cgo</a>.<br/>
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<sup>‡</sup>You only need to install the command line tools for
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<a href="http://developer.apple.com/Xcode/">Xcode</a>. If you have already
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installed Xcode 4.3+, you can install it from the Components tab of the
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Downloads preferences panel.
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</p>
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</div><!-- hideFromDownload -->
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<h2 id="install">Install the Go tools</h2>
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<p>
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If you are upgrading from an older version of Go you must
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first <a href="#uninstall">remove the existing version</a>.
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</p>
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<div id="tarballInstructions">
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<h3 id="tarball">Linux, Mac OS X, and FreeBSD tarballs</h3>
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<p>
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<a href="/dl/">Download the archive</a>
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and extract it into <code>/usr/local</code>, creating a Go tree in
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<code>/usr/local/go</code>. For example:
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</p>
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<pre>
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tar -C /usr/local -xzf <span class="downloadFilename">go$VERSION.$OS-$ARCH.tar.gz</span>
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</pre>
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<p class="hideFromDownload">
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Choose the archive file appropriate for your installation.
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For instance, if you are installing Go version 1.2.1 for 64-bit x86 on Linux,
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the archive you want is called <code>go1.2.1.linux-amd64.tar.gz</code>.
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</p>
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<p>
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(Typically these commands must be run as root or through <code>sudo</code>.)
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</p>
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<p>
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Add <code>/usr/local/go/bin</code> to the <code>PATH</code> environment
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variable. You can do this by adding this line to your <code>/etc/profile</code>
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(for a system-wide installation) or <code>$HOME/.profile</code>:
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</p>
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<pre>
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export PATH=$PATH:/usr/local/go/bin
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</pre>
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<h4 id="tarball_non_standard">Installing to a custom location</h4>
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<p>
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The Go binary distributions assume they will be installed in
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<code>/usr/local/go</code> (or <code>c:\Go</code> under Windows),
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but it is possible to install the Go tools to a different location.
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In this case you must set the <code>GOROOT</code> environment variable
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to point to the directory in which it was installed.
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</p>
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<p>
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For example, if you installed Go to your home directory you should add
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commands like the following to <code>$HOME/.profile</code>:
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</p>
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<pre>
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export GOROOT=$HOME/go1.X
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export PATH=$PATH:$GOROOT/bin
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</pre>
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<p>
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<b>Note</b>: <code>GOROOT</code> must be set only when installing to a custom
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location.
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</p>
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</div><!-- tarballInstructions -->
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<div id="darwinPackageInstructions">
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<h3 id="osx">Mac OS X package installer</h3>
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<p>
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<a href="/dl/">Download the package file</a>,
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open it, and follow the prompts to install the Go tools.
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The package installs the Go distribution to <code>/usr/local/go</code>.
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</p>
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<p>
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The package should put the <code>/usr/local/go/bin</code> directory in your
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<code>PATH</code> environment variable. You may need to restart any open
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Terminal sessions for the change to take effect.
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</p>
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</div><!-- darwinPackageInstructions -->
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<div id="windowsInstructions">
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<h3 id="windows">Windows</h3>
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<p class="hideFromDownload">
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The Go project provides two installation options for Windows users
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(besides <a href="/doc/install/source">installing from source</a>):
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a zip archive that requires you to set some environment variables and an
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MSI installer that configures your installation automatically.
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</p>
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<div id="windowsInstallerInstructions">
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<h4 id="windows_msi">MSI installer</h4>
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<p>
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Open the <a href="/dl/">MSI file</a>
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and follow the prompts to install the Go tools.
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By default, the installer puts the Go distribution in <code>c:\Go</code>.
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</p>
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<p>
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The installer should put the <code>c:\Go\bin</code> directory in your
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<code>PATH</code> environment variable. You may need to restart any open
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command prompts for the change to take effect.
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</p>
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</div><!-- windowsInstallerInstructions -->
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<div id="windowsZipInstructions">
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<h4 id="windows_zip">Zip archive</h4>
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<p>
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<a href="/dl/">Download the zip file</a> and extract it into the directory of your choice (we suggest <code>c:\Go</code>).
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</p>
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<p>
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If you chose a directory other than <code>c:\Go</code>,
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you must set the <code>GOROOT</code> environment variable to your chosen path.
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</p>
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<p>
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Add the <code>bin</code> subdirectory of your Go root (for example, <code>c:\Go\bin</code>) to your <code>PATH</code> environment variable.
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</p>
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</div><!-- windowsZipInstructions -->
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<h4 id="windows_env">Setting environment variables under Windows</h4>
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<p>
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Under Windows, you may set environment variables through the "Environment
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Variables" button on the "Advanced" tab of the "System" control panel. Some
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versions of Windows provide this control panel through the "Advanced System
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Settings" option inside the "System" control panel.
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</p>
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</div><!-- windowsInstructions -->
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<h2 id="testing">Test your installation</h2>
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<p>
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Check that Go is installed correctly by setting up a workspace
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and building a simple program, as follows.
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</p>
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<p>
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Create your <a href="code.html#Workspaces">workspace</a> directory,
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<code class="testUnix">$HOME/go</code><code class="testWindows">%USERPROFILE%\go</code>.
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(If you'd like to use a different directory,
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you will need to <a href="https://golang.org/wiki/SettingGOPATH">set the <code>GOPATH</code> environment variable</a>.)
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</p>
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<p>
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Next, make the directory <code>src/hello</code> inside your workspace,
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and in that directory create a file named <code>hello.go</code> that looks like:
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</p>
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<pre>
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package main
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import "fmt"
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func main() {
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fmt.Printf("hello, world\n")
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}
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</pre>
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<p>
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Then build it with the <code>go</code> tool:
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</p>
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<pre class="testUnix">
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$ <b>cd $HOME/go/src/hello</b>
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$ <b>go build</b>
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</pre>
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<pre class="testWindows">
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C:\> <b>cd %USERPROFILE%\go\src\hello</b>
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C:\Users\Gopher\go\src\hello> <b>go build</b>
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</pre>
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<p>
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The command above will build an executable named
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<code class="testUnix">hello</code><code class="testWindows">hello.exe</code>
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in the directory alongside your source code.
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Execute it to see the greeting:
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</p>
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<pre class="testUnix">
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$ <b>./hello</b>
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hello, world
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</pre>
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<pre class="testWindows">
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C:\Users\Gopher\go\src\hello> <b>hello</b>
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hello, world
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</pre>
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<p>
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If you see the "hello, world" message then your Go installation is working.
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</p>
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<p>
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You can run <code>go</code> <code>install</code> to install the binary into
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your workspace's <code>bin</code> directory
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or <code>go</code> <code>clean</code> to remove it.
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</p>
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<p>
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Before rushing off to write Go code please read the
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<a href="/doc/code.html">How to Write Go Code</a> document,
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which describes some essential concepts about using the Go tools.
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</p>
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<h2 id="uninstall">Uninstalling Go</h2>
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<p>
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To remove an existing Go installation from your system delete the
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<code>go</code> directory. This is usually <code>/usr/local/go</code>
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under Linux, Mac OS X, and FreeBSD or <code>c:\Go</code>
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under Windows.
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</p>
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<p>
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You should also remove the Go <code>bin</code> directory from your
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<code>PATH</code> environment variable.
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Under Linux and FreeBSD you should edit <code>/etc/profile</code> or
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<code>$HOME/.profile</code>.
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If you installed Go with the <a href="#osx">Mac OS X package</a> then you
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should remove the <code>/etc/paths.d/go</code> file.
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Windows users should read the section about <a href="#windows_env">setting
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environment variables under Windows</a>.
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</p>
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<h2 id="help">Getting help</h2>
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<p>
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For help, see the <a href="/help/">list of Go mailing lists, forums, and places to chat</a>.
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</p>
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<p>
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Report bugs either by running “<b><code>go</code> <code>bug</code></b>”, or
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manually at the <a href="https://golang.org/issue">Go issue tracker</a>.
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</p>
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