Install Gradle on Ubuntu 12.04

I'm going to try builld Android projects with Gradle, so first of all I need to install this build system.

• Visit http://www.gradle.org/installation, click "Download Gradle 1.7" button to get complete source code(binaries, sources and documentation). This archive has size about 50Mb, but you can choose lighter archive on http://www.gradle.org/downloads.
• Unpack the archive with GUI tool, as Gradle requires.
• Also we need to add Gradle directory to $PATH variable. I add this only to my user's path, so I open ~/.bashrc and add the lines: 

PATH=$PATH:/home/username/gradle-1.7/bin
export PATH

•  Save changes and run source .bashrc to apply changes. I check the PATH with echo $PATH - it shoud be at the end of output.
• Final step - run gradle command in the terminal, it shows output:

:help

Welcome to Gradle 1.7.

To run a build, run gradle ...

To see a list of available tasks, run gradle tasks

To see a list of command-line options, run gradle --help

BUILD SUCCESSFUL

Total time: 4.786 secs

Sounds good, Gradle build system is installed now and ready for use.

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