Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Note that for most of the fields that have a string value, such as sex, purposeOfVisit, and so on, we add the not_analyzed field type definition."

A block of code is set as follows:

curl -X PUT "http://$hostname:9200/planeticketing" -d '{
        "index": {
            "number_of_shards": 2,
            "number_of_replicas": 1
        }
    }'

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

          "query": "nausea fever"
        }
      },
      "negative": {
        "multi_match": {
          "fields": [
            "title",
            "content"
          ],

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

curl -XPOST 'http://localhost:9200/wiki/articles/' -d @India.json

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Now, take the Browser tab in the head UI."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.