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---
layout: documentation
title: Installing Bazel
---
# Installing Bazel
See the instructions for installing Bazel on:
* [Ubuntu Linux (16.04, 15.10, and 14.04)](install-ubuntu.md)
* [Mac OS X](install-os-x.md)
* [Windows (experimental)](install-windows.md)
For other platforms, you can try to [compile from source](install-compile-source.md).
Required Java version:
Java JDK 8 or later is required. To address the problem of JDK 8 not being
available on some machines, Bazel's binary installer embeds a JDK by default.
**Note:** Homebrew and Debian packages do not contain the embedded JDK. The
shell installers are the only ones with an embedded JDK.
Extras:
* [Bash completion](#bash)
* [zsh completion](#zsh)
For more information on using Bazel, see
[Getting Started with Bazel](getting-started.html).
## <a name="jdk7"></a>Using Bazel with JDK 7
Bazel version _0.5.0_ does run with JDK 7. However, starting with version
_0.5.1_ Bazel must use JDK 8.
The installers available for _0.5.0_ are:
* `bazel-0.5.0-installer.sh`: default version with embedded JDK
* `bazel-0.5.0-without-jdk-installer.sh`: version without embedded JDK
* `bazel-0.5.0-jdk7-installer.sh`: version compatible with JDK 7, will not be
available in later releases
## <a name="bash"></a>Getting bash completion
Bazel comes with a bash completion script, which the installer copies into the
`bin` directory. If you ran the installer with `--user`, this will be
`$HOME/.bazel/bin`. If you ran the installer as root, this will be
`/usr/local/bazel/bin`.
Copy the `bazel-complete.bash` script to your completion folder
(`/etc/bash_completion.d` directory under Ubuntu). If you don't have a
completion folder, you can copy it wherever suits you and insert
`source /path/to/bazel-complete.bash` in your `~/.bashrc` file (under OS X, put
it in your `~/.bash_profile` file).
If you built Bazel from source, the bash completion target is in the `//scripts`
package:
1. Build it with Bazel: `bazel build //scripts:bazel-complete.bash`.
2. Copy the script `bazel-bin/scripts/bazel-complete.bash` to one of the
locations described above.
## <a name="zsh"></a>Getting zsh completion
Bazel also comes with a zsh completion script. To install it:
1. Add this script to a directory on your $fpath:
```
fpath[1,0]=~/.zsh/completion/
mkdir -p ~/.zsh/completion/
cp scripts/zsh_completion/_bazel ~/.zsh/completion
```
You may have to call `rm -f ~/.zcompdump; compinit`
the first time to make it work.
2. Optionally, add the following to your .zshrc.
```
# This way the completion script does not have to parse Bazel's options
# repeatedly. The directory in cache-path must be created manually.
zstyle ':completion:*' use-cache on
zstyle ':completion:*' cache-path ~/.zsh/cache
```
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