Shell script for automating the procedure here

create-hello-world-greengrass-component.sh

# Shell script for the procedure here.
# https://docs.aws.amazon.com/greengrass/v2/developerguide/create-components.html

if [ $# != 1 ]; then
    echo "Usage: $0 <dirname>"
    exit 1
else

mkdir -p $1/{recipes,artifacts}

cat <<EOS > $1/recipes/com.example.HelloWorld-1.0.0.json
{
  "RecipeFormatVersion": "2020-01-25",
  "ComponentName": "com.example.HelloWorld",
  "ComponentVersion": "1.0.0",
  "ComponentDescription": "My first AWS IoT Greengrass component.",
  "ComponentPublisher": "Amazon",
  "ComponentConfiguration": {
    "DefaultConfiguration": {
      "Message": "world"
    }
  },
  "Manifests": [
    {
      "Platform": {
        "os": "linux"
      },
      "Lifecycle": {
        "Run": "python3 -u {artifacts:path}/hello_world.py \"{configuration:/Message}\""
      }
    },
    {
      "Platform": {
        "os": "windows"
      },
      "Lifecycle": {
        "Run": "py -3 -u {artifacts:path}/hello_world.py \"{configuration:/Message}\""
      }
    }
  ]
}
EOS

mkdir -p $1/artifacts/com.example.HelloWorld/1.0.0

cat <<EOS > $1/artifacts/com.example.HelloWorld/1.0.0/hello_world.py
import sys

message = "Hello, %s!" % sys.argv[1]

# Print the message to stdout, which Greengrass saves in a log file.
print(message)
EOS

fi