Conventions used

There are several 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: “This WirelessDeviceId is created by AWS when you add the device.”

A block of code is set as follows:

def lambda_handler(event, context): 
    print("Received event: " + json.dumps(event, indent=2)) 

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

$ cd /greengrass/v2/logs/ 
$ tail -f com.environmentsense.modbus.ModbusRequest.log

Bold: Indicates a new term, an important word, or words that you see on screen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “Select System info from the Administration panel.”

Tips or important notes

Appear like this.