Conventions used

This book is mostly written in the form of dialog. Every time there is a person who is directly speaking with someone else, you will see the following format used:

<visual icon of the speaker> <name of the speaker>: <sentence>

Here is an example:

Berta: Oh, that was cool!

When people don’t talk to each other directly, it is the author that is speaking to you as a voiceover/narration. This is simply represented by a paragraph without any visual next to it.

Here is an example:

When Berta heard what Alex said, she was very excited.

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

Code in text: 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: “Notice the Get-RedisKey or Add-RedisKey commands.”

A block of code is set as follows:

SELECT
    VIN,
    Specs.EngSize,
    Specs.HP
FROM vehicles
WHERE type = 'Truck'

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

Function BackupTheFiles
{
   $SourceB="SourceBucket"; $DestB="DestBucket"
   $Files = Get-S3Object -BucketName $SourceB
   Foreach ($File in $Files)
   {
      Copy-S3Object -BucketName $SourceB       `
                    -Key $File.Key             `
                    -DestinationKey $File.Key  `
                    -DestinationBucket $DestB
   }
   Publish-SNSMessage -Message "Finished" -TopicARN $SomeTopic
}

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

aws s3api list-objects --bucket jcanalytics 

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “The container image we have built can now be tagged and, finally, pushed to a location called a container registry. ”

Tips or important notes

Appear like this.