1. If you will be the maintainer of a self hosted redash service – you must be proficient with Linux , this will help you to get through Chapter 2, Installing Redash chapter.
2. If you will be using Redash to write and visualize queries only – then your minimal requirement will be SQL (no matter which).
3. If you wish to contribute back to redash, or extend its functionality – then Python and some JavaScript knowledge is required.
4. In all of the above cases – you can only benefit if you run the examples presented in the book.
5. from dev side – most of the benefits come from looking at the code!

You can download the example code files for this book from your account at www.packtpub.com. If you purchased this book elsewhere, you can visit www.packtpub.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packtpub.com.
2. Select the SUPPORT tab.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/Redash-v5-Quick-Start-Guide. In case there's an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "In case you prefer to have more control over the installation, you can choose Docker or manually run the bootstrap.sh script"

A block of code is set as follows:

root@ip-10-69-10-45:/home/bitnami
root@ip-10-69-10-45:/home/bitnami
telnet 54.156.58.190 5432
Trying 54.156.58.190...
Connected to 54.156.58.190.
Escape character is '^]'.
^]
telnet>   

Any command-line input or output is written as follows:

ps -ef | grep redash

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "To create a new visualization, press the +New Visualization button"