There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.

# AWS IoT examples using AWS CLI with Bash script
<a name="bash_2_iot_code_examples"></a>

The following code examples show you how to perform actions and implement common scenarios by using the AWS Command Line Interface with Bash script with AWS IoT.

*Scenarios* are code examples that show you how to accomplish specific tasks by calling multiple functions within a service or combined with other AWS services.

Each example includes a link to the complete source code, where you can find instructions on how to set up and run the code in context.

**Topics**
+ [Scenarios](#scenarios)

## Scenarios
<a name="scenarios"></a>

### Getting Started with IoT Device Defender
<a name="iot_GettingStarted_079_bash_2_topic"></a>

The following code example shows how to:
+ Create Required IAM Roles
+ Enable IoT Device Defender Audit Checks
+ Run an On-Demand Audit
+ Create a Mitigation Action
+ Apply Mitigation Actions to Findings
+ Set Up SNS Notifications (Optional)
+ Enable IoT Logging

**AWS CLI with Bash script**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [Sample developer tutorials](https://github.com/aws-samples/sample-developer-tutorials/tree/main/tuts/079-aws-iot-device-defender-gs) repository. 

```
#!/bin/bash

# AWS IoT Device Defender Getting Started Script
# This script demonstrates how to use AWS IoT Device Defender to enable audit checks,
# view audit results, create mitigation actions, and apply them to findings.

# Set up logging
LOG_FILE="iot-device-defender-script-$(date +%Y%m%d%H%M%S).log"
exec > >(tee -a "$LOG_FILE") 2>&1

echo "==================================================="
echo "AWS IoT Device Defender Getting Started Script"
echo "==================================================="
echo "Starting script execution at $(date)"
echo ""

# Function to check for errors in command output
check_error() {
    if echo "$1" | grep -i "An error occurred\|Exception\|Failed\|usage: aws" > /dev/null; then
        echo "ERROR: Command failed with the following output:"
        echo "$1"
        return 1
    fi
    return 0
}

# Function to create IAM roles
create_iam_role() {
    local ROLE_NAME=$1
    local TRUST_POLICY=$2
    local MANAGED_POLICY=$3
    
    echo "Creating IAM role: $ROLE_NAME"
    
    # Check if role already exists
    ROLE_EXISTS=$(aws iam get-role --role-name "$ROLE_NAME" 2>&1 || echo "NOT_EXISTS")
    
    if echo "$ROLE_EXISTS" | grep -i "NoSuchEntity" > /dev/null; then
        # Create the role with trust policy
        ROLE_RESULT=$(aws iam create-role \
            --role-name "$ROLE_NAME" \
            --assume-role-policy-document "$TRUST_POLICY" 2>&1)
        
        if ! check_error "$ROLE_RESULT"; then
            echo "Failed to create role $ROLE_NAME"
            return 1
        fi
        
        # For IoT logging role, create an inline policy instead of using a managed policy
        if [[ "$ROLE_NAME" == "AWSIoTLoggingRole" ]]; then
            LOGGING_POLICY='{
                "Version":"2012-10-17",		 	 	 
                "Statement": [
                    {
                        "Effect": "Allow",
                        "Action": [
                            "logs:CreateLogGroup",
                            "logs:CreateLogStream",
                            "logs:PutLogEvents",
                            "logs:PutMetricFilter",
                            "logs:PutRetentionPolicy",
                            "logs:GetLogEvents",
                            "logs:DescribeLogStreams"
                        ],
                        "Resource": [
                            "arn:aws:logs:*:*:*"
                        ]
                    }
                ]
            }'
            
            POLICY_RESULT=$(aws iam put-role-policy \
                --role-name "$ROLE_NAME" \
                --policy-name "${ROLE_NAME}Policy" \
                --policy-document "$LOGGING_POLICY" 2>&1)
                
            if ! check_error "$POLICY_RESULT"; then
                echo "Failed to attach inline policy to role $ROLE_NAME"
                return 1
            fi
        elif [[ "$ROLE_NAME" == "IoTMitigationActionErrorLoggingRole" ]]; then
            MITIGATION_POLICY='{
                "Version":"2012-10-17",		 	 	 
                "Statement": [
                    {
                        "Effect": "Allow",
                        "Action": [
                            "iot:UpdateCACertificate",
                            "iot:UpdateCertificate",
                            "iot:SetV2LoggingOptions",
                            "iot:SetLoggingOptions",
                            "iot:AddThingToThingGroup",
                            "iot:PublishToTopic"
                        ],
                        "Resource": "*"
                    },
                    {
                        "Effect": "Allow",
                        "Action": "iam:PassRole",
                        "Resource": "*",
                        "Condition": {
                            "StringEquals": {
                                "iam:PassedToService": "iot.amazonaws.com"
                            }
                        }
                    }
                ]
            }'
            
            POLICY_RESULT=$(aws iam put-role-policy \
                --role-name "$ROLE_NAME" \
                --policy-name "${ROLE_NAME}Policy" \
                --policy-document "$MITIGATION_POLICY" 2>&1)
                
            if ! check_error "$POLICY_RESULT"; then
                echo "Failed to attach inline policy to role $ROLE_NAME"
                return 1
            fi
        else
            # Attach managed policy to role if provided
            if [ -n "$MANAGED_POLICY" ]; then
                ATTACH_RESULT=$(aws iam attach-role-policy \
                    --role-name "$ROLE_NAME" \
                    --policy-arn "$MANAGED_POLICY" 2>&1)
                
                if ! check_error "$ATTACH_RESULT"; then
                    echo "Failed to attach policy to role $ROLE_NAME"
                    return 1
                fi
            fi
        fi
        
        echo "Role $ROLE_NAME created successfully"
    else
        echo "Role $ROLE_NAME already exists, skipping creation"
    fi
    
    # Get the role ARN
    ROLE_ARN=$(aws iam get-role --role-name "$ROLE_NAME" --query 'Role.Arn' --output text)
    echo "Role ARN: $ROLE_ARN"
    return 0
}

# Array to store created resources for cleanup
declare -a CREATED_RESOURCES

# Step 1: Create IAM roles needed for the tutorial
echo "==================================================="
echo "Step 1: Creating required IAM roles"
echo "==================================================="

# Create IoT Device Defender Audit role
IOT_DEFENDER_AUDIT_TRUST_POLICY='{
  "Version":"2012-10-17",		 	 	 
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "Service": "iot.amazonaws.com"
      },
      "Action": "sts:AssumeRole"
    }
  ]
}'

create_iam_role "AWSIoTDeviceDefenderAuditRole" "$IOT_DEFENDER_AUDIT_TRUST_POLICY" "arn:aws:iam::aws:policy/service-role/AWSIoTDeviceDefenderAudit"
AUDIT_ROLE_ARN=$ROLE_ARN
CREATED_RESOURCES+=("IAM Role: AWSIoTDeviceDefenderAuditRole")

# Create IoT Logging role
IOT_LOGGING_TRUST_POLICY='{
  "Version":"2012-10-17",		 	 	 
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "Service": "iot.amazonaws.com"
      },
      "Action": "sts:AssumeRole"
    }
  ]
}'

create_iam_role "AWSIoTLoggingRole" "$IOT_LOGGING_TRUST_POLICY" ""
LOGGING_ROLE_ARN=$ROLE_ARN
CREATED_RESOURCES+=("IAM Role: AWSIoTLoggingRole")

# Create IoT Mitigation Action role
IOT_MITIGATION_TRUST_POLICY='{
  "Version":"2012-10-17",		 	 	 
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "Service": "iot.amazonaws.com"
      },
      "Action": "sts:AssumeRole"
    }
  ]
}'

create_iam_role "IoTMitigationActionErrorLoggingRole" "$IOT_MITIGATION_TRUST_POLICY" ""
MITIGATION_ROLE_ARN=$ROLE_ARN
CREATED_RESOURCES+=("IAM Role: IoTMitigationActionErrorLoggingRole")

# Step 2: Enable audit checks
echo ""
echo "==================================================="
echo "Step 2: Enabling AWS IoT Device Defender audit checks"
echo "==================================================="

# Get current audit configuration
echo "Getting current audit configuration..."
CURRENT_CONFIG=$(aws iot describe-account-audit-configuration)
echo "$CURRENT_CONFIG"

# Enable specific audit checks
echo "Enabling audit checks..."
UPDATE_RESULT=$(aws iot update-account-audit-configuration \
  --role-arn "$AUDIT_ROLE_ARN" \
  --audit-check-configurations '{"LOGGING_DISABLED_CHECK":{"enabled":true}}')

if ! check_error "$UPDATE_RESULT"; then
    echo "Failed to update audit configuration"
    exit 1
fi

echo "Audit checks enabled successfully"

# Step 3: Run an on-demand audit
echo ""
echo "==================================================="
echo "Step 3: Running an on-demand audit"
echo "==================================================="

echo "Starting on-demand audit task..."
AUDIT_TASK_RESULT=$(aws iot start-on-demand-audit-task \
  --target-check-names LOGGING_DISABLED_CHECK)

if ! check_error "$AUDIT_TASK_RESULT"; then
    echo "Failed to start on-demand audit task"
    exit 1
fi

TASK_ID=$(echo "$AUDIT_TASK_RESULT" | grep -o '"taskId": "[^"]*' | cut -d'"' -f4)
echo "Audit task started with ID: $TASK_ID"
CREATED_RESOURCES+=("Audit Task: $TASK_ID")

# Wait for the audit task to complete
echo "Waiting for audit task to complete (this may take a few minutes)..."
TASK_STATUS="IN_PROGRESS"
while [ "$TASK_STATUS" != "COMPLETED" ]; do
    sleep 10
    TASK_DETAILS=$(aws iot describe-audit-task --task-id "$TASK_ID")
    TASK_STATUS=$(echo "$TASK_DETAILS" | grep -o '"taskStatus": "[^"]*' | cut -d'"' -f4)
    echo "Current task status: $TASK_STATUS"
    
    if [ "$TASK_STATUS" == "FAILED" ]; then
        echo "Audit task failed"
        exit 1
    fi
done

echo "Audit task completed successfully"

# Get audit findings
echo "Getting audit findings..."
FINDINGS=$(aws iot list-audit-findings \
  --task-id "$TASK_ID")

echo "Audit findings:"
echo "$FINDINGS"

# Check if we have any non-compliant findings
if echo "$FINDINGS" | grep -q '"findingId"'; then
    FINDING_ID=$(echo "$FINDINGS" | grep -o '"findingId": "[^"]*' | head -1 | cut -d'"' -f4)
    echo "Found non-compliant finding with ID: $FINDING_ID"
    HAS_FINDINGS=true
else
    echo "No non-compliant findings detected"
    HAS_FINDINGS=false
fi

# Step 4: Create a mitigation action
echo ""
echo "==================================================="
echo "Step 4: Creating a mitigation action"
echo "==================================================="

# Check if mitigation action already exists
MITIGATION_EXISTS=$(aws iot list-mitigation-actions --action-name "EnableErrorLoggingAction" 2>&1)
if echo "$MITIGATION_EXISTS" | grep -q "EnableErrorLoggingAction"; then
    echo "Mitigation action 'EnableErrorLoggingAction' already exists, deleting it first..."
    aws iot delete-mitigation-action --action-name "EnableErrorLoggingAction"
    # Wait a moment for deletion to complete
    sleep 5
fi

echo "Creating mitigation action to enable AWS IoT logging..."
MITIGATION_RESULT=$(aws iot create-mitigation-action \
  --action-name "EnableErrorLoggingAction" \
  --role-arn "$MITIGATION_ROLE_ARN" \
  --action-params "{\"enableIoTLoggingParams\":{\"roleArnForLogging\":\"$LOGGING_ROLE_ARN\",\"logLevel\":\"ERROR\"}}")

echo "$MITIGATION_RESULT"
if ! check_error "$MITIGATION_RESULT"; then
    echo "Failed to create mitigation action"
    exit 1
fi

echo "Mitigation action created successfully"
CREATED_RESOURCES+=("Mitigation Action: EnableErrorLoggingAction")

# Step 5: Apply mitigation action to findings (if any)
if [ "$HAS_FINDINGS" = true ]; then
    echo ""
    echo "==================================================="
    echo "Step 5: Applying mitigation action to findings"
    echo "==================================================="

    MITIGATION_TASK_ID="MitigationTask-$(date +%s)"
    echo "Starting mitigation actions task with ID: $MITIGATION_TASK_ID"
    
    MITIGATION_TASK_RESULT=$(aws iot start-audit-mitigation-actions-task \
      --task-id "$MITIGATION_TASK_ID" \
      --target "{\"findingIds\":[\"$FINDING_ID\"]}" \
      --audit-check-to-actions-mapping "{\"LOGGING_DISABLED_CHECK\":[\"EnableErrorLoggingAction\"]}")

    if ! check_error "$MITIGATION_TASK_RESULT"; then
        echo "Failed to start mitigation actions task"
        exit 1
    fi

    echo "Mitigation actions task started successfully"
    CREATED_RESOURCES+=("Mitigation Task: $MITIGATION_TASK_ID")
    
    # Wait for the mitigation task to complete
    echo "Waiting for mitigation task to complete..."
    sleep 10
    
    # Use a more reliable date format for the API call
    START_TIME=$(date -u -d 'today' '+%Y-%m-%dT%H:%M:%S.000Z')
    END_TIME=$(date -u '+%Y-%m-%dT%H:%M:%S.000Z')
    
    MITIGATION_TASKS=$(aws iot list-audit-mitigation-actions-tasks \
      --start-time "$START_TIME" \
      --end-time "$END_TIME" 2>&1)
    
    if check_error "$MITIGATION_TASKS"; then
        echo "Mitigation tasks:"
        echo "$MITIGATION_TASKS"
    else
        echo "Could not retrieve mitigation task status, but task was started successfully"
    fi
else
    echo ""
    echo "==================================================="
    echo "Step 5: Skipping mitigation action application (no findings)"
    echo "==================================================="
fi

# Step 6: Set up SNS notifications (optional)
echo ""
echo "==================================================="
echo "Step 6: Setting up SNS notifications"
echo "==================================================="

# Check if SNS topic already exists
SNS_TOPICS=$(aws sns list-topics)
if echo "$SNS_TOPICS" | grep -q "IoTDDNotifications"; then
    echo "SNS topic 'IoTDDNotifications' already exists, using existing topic..."
    TOPIC_ARN=$(echo "$SNS_TOPICS" | grep -o '"TopicArn": "[^"]*IoTDDNotifications' | cut -d'"' -f4)
else
    echo "Creating SNS topic for notifications..."
    SNS_RESULT=$(aws sns create-topic --name "IoTDDNotifications")

    if ! check_error "$SNS_RESULT"; then
        echo "Failed to create SNS topic"
        exit 1
    fi

    TOPIC_ARN=$(echo "$SNS_RESULT" | grep -o '"TopicArn": "[^"]*' | cut -d'"' -f4)
    echo "SNS topic created with ARN: $TOPIC_ARN"
    CREATED_RESOURCES+=("SNS Topic: IoTDDNotifications")
fi

echo "Updating audit configuration to enable SNS notifications..."
SNS_UPDATE_RESULT=$(aws iot update-account-audit-configuration \
  --audit-notification-target-configurations "{\"SNS\":{\"targetArn\":\"$TOPIC_ARN\",\"roleArn\":\"$AUDIT_ROLE_ARN\",\"enabled\":true}}")

if ! check_error "$SNS_UPDATE_RESULT"; then
    echo "Failed to update audit configuration for SNS notifications"
    exit 1
fi

echo "SNS notifications enabled successfully"

# Step 7: Enable AWS IoT logging
echo ""
echo "==================================================="
echo "Step 7: Enabling AWS IoT logging"
echo "==================================================="

echo "Setting up AWS IoT logging options..."

# Create the logging options payload
LOGGING_OPTIONS_PAYLOAD="{\"roleArn\":\"$LOGGING_ROLE_ARN\",\"logLevel\":\"ERROR\"}"

LOGGING_RESULT=$(aws iot set-v2-logging-options \
  --role-arn "$LOGGING_ROLE_ARN" \
  --default-log-level "ERROR" 2>&1)

if ! check_error "$LOGGING_RESULT"; then
    echo "Failed to set up AWS IoT v2 logging, trying v1 logging..."
    
    # Try the older set-logging-options command with proper payload format
    LOGGING_RESULT_V1=$(aws iot set-logging-options \
      --logging-options-payload "$LOGGING_OPTIONS_PAYLOAD" 2>&1)
    
    if ! check_error "$LOGGING_RESULT_V1"; then
        echo "Failed to set up AWS IoT logging with both v1 and v2 methods"
        echo "V2 result: $LOGGING_RESULT"
        echo "V1 result: $LOGGING_RESULT_V1"
        exit 1
    else
        echo "AWS IoT v1 logging enabled successfully"
    fi
else
    echo "AWS IoT v2 logging enabled successfully"
fi

# Verify logging is enabled
echo "Verifying logging configuration..."
LOGGING_CONFIG=$(aws iot get-v2-logging-options 2>&1)
if check_error "$LOGGING_CONFIG"; then
    echo "V2 Logging configuration:"
    echo "$LOGGING_CONFIG"
else
    echo "Checking v1 logging configuration..."
    LOGGING_CONFIG_V1=$(aws iot get-logging-options 2>&1)
    if check_error "$LOGGING_CONFIG_V1"; then
        echo "V1 Logging configuration:"
        echo "$LOGGING_CONFIG_V1"
    else
        echo "Could not retrieve logging configuration"
    fi
fi

# Script completed successfully
echo ""
echo "==================================================="
echo "AWS IoT Device Defender setup completed successfully!"
echo "==================================================="
echo "The following resources were created:"
for resource in "${CREATED_RESOURCES[@]}"; do
    echo "- $resource"
done
echo ""

# Ask if user wants to clean up resources
echo "==========================================="
echo "CLEANUP CONFIRMATION"
echo "==========================================="
echo "Do you want to clean up all created resources? (y/n): "
read -r CLEANUP_CHOICE

if [[ $CLEANUP_CHOICE =~ ^[Yy]$ ]]; then
    echo "Starting cleanup process..."
    
    # Disable AWS IoT logging
    echo "Disabling AWS IoT logging..."
    
    # Try to disable v2 logging first
    DISABLE_V2_RESULT=$(aws iot set-v2-logging-options \
      --default-log-level "DISABLED" 2>&1)
    
    if ! check_error "$DISABLE_V2_RESULT"; then
        echo "Failed to disable v2 logging, trying v1..."
        # Try v1 logging disable
        DISABLE_V1_RESULT=$(aws iot set-logging-options \
          --logging-options-payload "{\"logLevel\":\"DISABLED\"}" 2>&1)
        
        if ! check_error "$DISABLE_V1_RESULT"; then
            echo "Warning: Could not disable logging through either v1 or v2 methods"
        else
            echo "V1 logging disabled successfully"
        fi
    else
        echo "V2 logging disabled successfully"
    fi
    
    # Delete mitigation action
    echo "Deleting mitigation action..."
    aws iot delete-mitigation-action --action-name "EnableErrorLoggingAction"
    
    # Reset audit configuration
    echo "Resetting IoT Device Defender audit configuration..."
    aws iot update-account-audit-configuration \
      --audit-check-configurations '{"LOGGING_DISABLED_CHECK":{"enabled":false}}' 2>&1 | grep -qi "error" && echo "Warning: Failed to disable audit check"
    aws iot delete-account-audit-configuration --delete-scheduled-audits 2>&1 | grep -qi "error" && echo "Warning: Failed to delete audit configuration"
    
    # Delete SNS topic
    echo "Deleting SNS topic..."
    aws sns delete-topic --topic-arn "$TOPIC_ARN"
    
    # Detach policies from roles and delete roles (in reverse order)
    echo "Cleaning up IAM roles..."
    
    # Check if policies exist before trying to delete them
    ROLE_POLICIES=$(aws iam list-role-policies --role-name "IoTMitigationActionErrorLoggingRole" 2>&1)
    if ! echo "$ROLE_POLICIES" | grep -q "NoSuchEntity"; then
        if echo "$ROLE_POLICIES" | grep -q "IoTMitigationActionErrorLoggingRolePolicy"; then
            aws iam delete-role-policy \
                --role-name "IoTMitigationActionErrorLoggingRole" \
                --policy-name "IoTMitigationActionErrorLoggingRolePolicy"
        fi
    fi
    aws iam delete-role --role-name "IoTMitigationActionErrorLoggingRole"
    
    ROLE_POLICIES=$(aws iam list-role-policies --role-name "AWSIoTLoggingRole" 2>&1)
    if ! echo "$ROLE_POLICIES" | grep -q "NoSuchEntity"; then
        if echo "$ROLE_POLICIES" | grep -q "AWSIoTLoggingRolePolicy"; then
            aws iam delete-role-policy \
                --role-name "AWSIoTLoggingRole" \
                --policy-name "AWSIoTLoggingRolePolicy"
        fi
    fi
    aws iam delete-role --role-name "AWSIoTLoggingRole"
    
    aws iam detach-role-policy \
        --role-name "AWSIoTDeviceDefenderAuditRole" \
        --policy-arn "arn:aws:iam::aws:policy/service-role/AWSIoTDeviceDefenderAudit"
    aws iam delete-role --role-name "AWSIoTDeviceDefenderAuditRole"
    
    echo "Cleanup completed successfully"
else
    echo "Skipping cleanup. Resources will remain in your AWS account."
fi

echo ""
echo "Script execution completed at $(date)"
echo "Log file: $LOG_FILE"
```
+ For API details, see the following topics in *AWS CLI Command Reference*.
  + [AttachRolePolicy](https://docs.aws.amazon.com/goto/aws-cli/iam-2010-05-08/AttachRolePolicy)
  + [CreateMitigationAction](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/CreateMitigationAction)
  + [CreateRole](https://docs.aws.amazon.com/goto/aws-cli/iam-2010-05-08/CreateRole)
  + [CreateTopic](https://docs.aws.amazon.com/goto/aws-cli/sns-2010-03-31/CreateTopic)
  + [DeleteAccountAuditConfiguration](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/DeleteAccountAuditConfiguration)
  + [DeleteMitigationAction](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/DeleteMitigationAction)
  + [DeleteRole](https://docs.aws.amazon.com/goto/aws-cli/iam-2010-05-08/DeleteRole)
  + [DeleteRolePolicy](https://docs.aws.amazon.com/goto/aws-cli/iam-2010-05-08/DeleteRolePolicy)
  + [DeleteTopic](https://docs.aws.amazon.com/goto/aws-cli/sns-2010-03-31/DeleteTopic)
  + [DescribeAccountAuditConfiguration](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/DescribeAccountAuditConfiguration)
  + [DescribeAuditTask](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/DescribeAuditTask)
  + [DetachRolePolicy](https://docs.aws.amazon.com/goto/aws-cli/iam-2010-05-08/DetachRolePolicy)
  + [GetLoggingOptions](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/GetLoggingOptions)
  + [GetRole](https://docs.aws.amazon.com/goto/aws-cli/iam-2010-05-08/GetRole)
  + [GetV2LoggingOptions](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/GetV2LoggingOptions)
  + [ListAuditFindings](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/ListAuditFindings)
  + [ListAuditMitigationActionsTasks](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/ListAuditMitigationActionsTasks)
  + [ListMitigationActions](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/ListMitigationActions)
  + [ListRolePolicies](https://docs.aws.amazon.com/goto/aws-cli/iam-2010-05-08/ListRolePolicies)
  + [ListTopics](https://docs.aws.amazon.com/goto/aws-cli/sns-2010-03-31/ListTopics)
  + [PutRolePolicy](https://docs.aws.amazon.com/goto/aws-cli/iam-2010-05-08/PutRolePolicy)
  + [SetLoggingOptions](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/SetLoggingOptions)
  + [SetV2LoggingOptions](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/SetV2LoggingOptions)
  + [StartAuditMitigationActionsTask](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/StartAuditMitigationActionsTask)
  + [StartOnDemandAuditTask](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/StartOnDemandAuditTask)
  + [UpdateAccountAuditConfiguration](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/UpdateAccountAuditConfiguration)

### Getting started with IoT Core
<a name="iot_GettingStarted_063_bash_2_topic"></a>

The following code example shows how to:
+ Create IoT resources
+ Configure your device
+ Run the sample application
+ Clean up resources

**AWS CLI with Bash script**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [Sample developer tutorials](https://github.com/aws-samples/sample-developer-tutorials/tree/main/tuts/063-aws-iot-core-gs) repository. 

```
#!/bin/bash

# AWS IoT Core Getting Started Script
# This script creates AWS IoT resources, configures a device, and runs a sample application

# Set up logging
LOG_FILE="iot-core-setup.log"
echo "Starting AWS IoT Core setup at $(date)" > $LOG_FILE

# Function to log commands and their outputs
log_cmd() {
    echo "$(date): Running command: $1" >> $LOG_FILE
    eval "$1" 2>&1 | tee -a $LOG_FILE
    return ${PIPESTATUS[0]}
}

# Function to check for errors
check_error() {
    if [ $1 -ne 0 ]; then
        echo "ERROR: Command failed with exit code $1" | tee -a $LOG_FILE
        echo "Please check the log file $LOG_FILE for details" | tee -a $LOG_FILE
        cleanup_on_error
        exit $1
    fi
}

# Function to cleanup resources on error
cleanup_on_error() {
    echo "Error encountered. Attempting to clean up resources..." | tee -a $LOG_FILE
    echo "Resources created:" | tee -a $LOG_FILE
    if [ ! -z "$CERTIFICATE_ARN" ]; then
        echo "Certificate ARN: $CERTIFICATE_ARN" | tee -a $LOG_FILE
        if [ ! -z "$POLICY_NAME" ]; then
            log_cmd "aws iot detach-policy --policy-name $POLICY_NAME --target $CERTIFICATE_ARN"
        fi
        if [ ! -z "$THING_NAME" ]; then
            log_cmd "aws iot detach-thing-principal --thing-name $THING_NAME --principal $CERTIFICATE_ARN"
        fi
        if [ ! -z "$CERTIFICATE_ID" ]; then
            log_cmd "aws iot update-certificate --certificate-id $CERTIFICATE_ID --new-status INACTIVE"
            log_cmd "aws iot delete-certificate --certificate-id $CERTIFICATE_ID"
        fi
    fi
    if [ ! -z "$THING_NAME" ]; then
        echo "Thing Name: $THING_NAME" | tee -a $LOG_FILE
        log_cmd "aws iot delete-thing --thing-name $THING_NAME"
    fi
    if [ ! -z "$POLICY_NAME" ]; then
        echo "Policy Name: $POLICY_NAME" | tee -a $LOG_FILE
        log_cmd "aws iot delete-policy --policy-name $POLICY_NAME"
    fi
    if [ ! -z "$SHARED_POLICY_NAME" ]; then
        echo "Shared Policy Name: $SHARED_POLICY_NAME" | tee -a $LOG_FILE
        log_cmd "aws iot delete-policy --policy-name $SHARED_POLICY_NAME"
    fi
}

# Generate unique identifiers
RANDOM_SUFFIX=$(openssl rand -hex 4)
THING_NAME="MyIoTThing-${RANDOM_SUFFIX}"
POLICY_NAME="MyIoTPolicy-${RANDOM_SUFFIX}"
SHARED_POLICY_NAME="SharedSubPolicy-${RANDOM_SUFFIX}"
CERTS_DIR="$HOME/certs"

echo "==================================================" | tee -a $LOG_FILE
echo "AWS IoT Core Getting Started" | tee -a $LOG_FILE
echo "==================================================" | tee -a $LOG_FILE
echo "This script will:" | tee -a $LOG_FILE
echo "1. Create AWS IoT resources (policy, thing, certificate)" | tee -a $LOG_FILE
echo "2. Configure your device" | tee -a $LOG_FILE
echo "3. Set up for running the sample application" | tee -a $LOG_FILE
echo "" | tee -a $LOG_FILE
echo "Thing Name: $THING_NAME" | tee -a $LOG_FILE
echo "Policy Name: $POLICY_NAME" | tee -a $LOG_FILE
echo "Certificates Directory: $CERTS_DIR" | tee -a $LOG_FILE
echo "==================================================" | tee -a $LOG_FILE
echo "" | tee -a $LOG_FILE

# Get AWS account ID
echo "Getting AWS account ID..." | tee -a $LOG_FILE
ACCOUNT_ID=$(log_cmd "aws sts get-caller-identity --query Account --output text")
check_error $?

# Get AWS region
echo "Getting AWS region..." | tee -a $LOG_FILE
REGION=$(log_cmd "aws configure get region")
check_error $?
if [ -z "$REGION" ]; then
    echo "AWS region not configured. Please run 'aws configure' to set your region." | tee -a $LOG_FILE
    exit 1
fi

echo "Using AWS Account ID: $ACCOUNT_ID and Region: $REGION" | tee -a $LOG_FILE

# Step 1: Create AWS IoT Resources
echo "" | tee -a $LOG_FILE
echo "Step 1: Creating AWS IoT Resources..." | tee -a $LOG_FILE

# Create IoT policy
echo "Creating IoT policy document..." | tee -a $LOG_FILE
cat > iot-policy.json << EOF
{
  "Version":"2012-10-17",		 	 	 
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "iot:Connect"
      ],
      "Resource": [
        "arn:aws:iot:$REGION:$ACCOUNT_ID:client/test-*"
      ]
    },
    {
      "Effect": "Allow",
      "Action": [
        "iot:Publish",
        "iot:Receive"
      ],
      "Resource": [
        "arn:aws:iot:$REGION:$ACCOUNT_ID:topic/test/topic"
      ]
    },
    {
      "Effect": "Allow",
      "Action": [
        "iot:Subscribe"
      ],
      "Resource": [
        "arn:aws:iot:$REGION:$ACCOUNT_ID:topicfilter/test/topic"
      ]
    }
  ]
}
EOF

echo "Creating IoT policy: $POLICY_NAME..." | tee -a $LOG_FILE
log_cmd "aws iot create-policy --policy-name $POLICY_NAME --policy-document file://iot-policy.json"
check_error $?

# Create IoT thing
echo "Creating IoT thing: $THING_NAME..." | tee -a $LOG_FILE
log_cmd "aws iot create-thing --thing-name $THING_NAME"
check_error $?

# Create directory for certificates
echo "Creating certificates directory..." | tee -a $LOG_FILE
log_cmd "mkdir -p $CERTS_DIR"
check_error $?

# Create keys and certificate
echo "Creating keys and certificate..." | tee -a $LOG_FILE
CERT_OUTPUT=$(log_cmd "aws iot create-keys-and-certificate --set-as-active --certificate-pem-outfile $CERTS_DIR/device.pem.crt --public-key-outfile $CERTS_DIR/public.pem.key --private-key-outfile $CERTS_DIR/private.pem.key")
check_error $?

# Extract certificate ARN and ID
CERTIFICATE_ARN=$(echo "$CERT_OUTPUT" | grep "certificateArn" | cut -d'"' -f4)
CERTIFICATE_ID=$(echo "$CERTIFICATE_ARN" | cut -d/ -f2)

if [ -z "$CERTIFICATE_ARN" ] || [ -z "$CERTIFICATE_ID" ]; then
    echo "Failed to extract certificate ARN or ID" | tee -a $LOG_FILE
    cleanup_on_error
    exit 1
fi

echo "Certificate ARN: $CERTIFICATE_ARN" | tee -a $LOG_FILE
echo "Certificate ID: $CERTIFICATE_ID" | tee -a $LOG_FILE

# Attach policy to certificate
echo "Attaching policy to certificate..." | tee -a $LOG_FILE
log_cmd "aws iot attach-policy --policy-name $POLICY_NAME --target $CERTIFICATE_ARN"
check_error $?

# Attach certificate to thing
echo "Attaching certificate to thing..." | tee -a $LOG_FILE
log_cmd "aws iot attach-thing-principal --thing-name $THING_NAME --principal $CERTIFICATE_ARN"
check_error $?

# Download Amazon Root CA certificate
echo "Downloading Amazon Root CA certificate..." | tee -a $LOG_FILE
log_cmd "curl -s -o $CERTS_DIR/Amazon-root-CA-1.pem https://www.amazontrust.com/repository/AmazonRootCA1.pem"
check_error $?

# Step 2: Configure Your Device
echo "" | tee -a $LOG_FILE
echo "Step 2: Configuring Your Device..." | tee -a $LOG_FILE

# Check if Git is installed
echo "Checking if Git is installed..." | tee -a $LOG_FILE
if ! command -v git &> /dev/null; then
    echo "Git is not installed. Please install Git and run this script again." | tee -a $LOG_FILE
    cleanup_on_error
    exit 1
fi

# Check if Python is installed
echo "Checking if Python is installed..." | tee -a $LOG_FILE
if ! command -v python3 &> /dev/null; then
    echo "Python 3 is not installed. Please install Python 3 and run this script again." | tee -a $LOG_FILE
    cleanup_on_error
    exit 1
fi

# Install AWS IoT Device SDK for Python
echo "Installing AWS IoT Device SDK for Python..." | tee -a $LOG_FILE
log_cmd "python3 -m pip install awsiotsdk"
check_error $?

# Clone the AWS IoT Device SDK for Python repository
echo "Cloning AWS IoT Device SDK for Python repository..." | tee -a $LOG_FILE
if [ ! -d "$HOME/aws-iot-device-sdk-python-v2" ]; then
    log_cmd "cd $HOME && git clone https://github.com/aws/aws-iot-device-sdk-python-v2.git"
    check_error $?
else
    echo "AWS IoT Device SDK for Python repository already exists." | tee -a $LOG_FILE
fi

# Step 3: Get AWS IoT Endpoint
echo "" | tee -a $LOG_FILE
echo "Step 3: Getting AWS IoT Endpoint..." | tee -a $LOG_FILE

IOT_ENDPOINT=$(log_cmd "aws iot describe-endpoint --endpoint-type iot:Data-ATS --query endpointAddress --output text")
check_error $?

echo "AWS IoT Endpoint: $IOT_ENDPOINT" | tee -a $LOG_FILE

# Create a shared subscription policy (optional)
echo "" | tee -a $LOG_FILE
echo "Creating shared subscription policy (optional)..." | tee -a $LOG_FILE

cat > shared-sub-policy.json << EOF
{
  "Version":"2012-10-17",		 	 	 
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "iot:Connect"
      ],
      "Resource": [
        "arn:aws:iot:$REGION:$ACCOUNT_ID:client/*"
      ]
    },
    {
      "Effect": "Allow",
      "Action": [
        "iot:Publish",
        "iot:Receive"
      ],
      "Resource": [
        "arn:aws:iot:$REGION:$ACCOUNT_ID:topic/test/topic"
      ]
    },
    {
      "Effect": "Allow",
      "Action": [
        "iot:Subscribe"
      ],
      "Resource": [
        "arn:aws:iot:$REGION:$ACCOUNT_ID:topicfilter/test/topic",
        "arn:aws:iot:$REGION:$ACCOUNT_ID:topicfilter/\$share/*/test/topic"
      ]
    }
  ]
}
EOF

log_cmd "aws iot create-policy --policy-name $SHARED_POLICY_NAME --policy-document file://shared-sub-policy.json"
check_error $?

log_cmd "aws iot attach-policy --policy-name $SHARED_POLICY_NAME --target $CERTIFICATE_ARN"
check_error $?

# Summary of created resources
echo "" | tee -a $LOG_FILE
echo "==================================================" | tee -a $LOG_FILE
echo "Setup Complete! Resources Created:" | tee -a $LOG_FILE
echo "==================================================" | tee -a $LOG_FILE
echo "Thing Name: $THING_NAME" | tee -a $LOG_FILE
echo "Policy Name: $POLICY_NAME" | tee -a $LOG_FILE
echo "Shared Subscription Policy Name: $SHARED_POLICY_NAME" | tee -a $LOG_FILE
echo "Certificate ID: $CERTIFICATE_ID" | tee -a $LOG_FILE
echo "Certificate ARN: $CERTIFICATE_ARN" | tee -a $LOG_FILE
echo "Certificate Files Location: $CERTS_DIR" | tee -a $LOG_FILE
echo "AWS IoT Endpoint: $IOT_ENDPOINT" | tee -a $LOG_FILE
echo "==================================================" | tee -a $LOG_FILE

# Instructions for running the sample application
echo "" | tee -a $LOG_FILE
echo "To run the sample application, execute:" | tee -a $LOG_FILE
echo "cd $HOME/aws-iot-device-sdk-python-v2/samples" | tee -a $LOG_FILE
echo "python3 pubsub.py \\" | tee -a $LOG_FILE
echo "  --endpoint $IOT_ENDPOINT \\" | tee -a $LOG_FILE
echo "  --ca_file $CERTS_DIR/Amazon-root-CA-1.pem \\" | tee -a $LOG_FILE
echo "  --cert $CERTS_DIR/device.pem.crt \\" | tee -a $LOG_FILE
echo "  --key $CERTS_DIR/private.pem.key" | tee -a $LOG_FILE
echo "" | tee -a $LOG_FILE
echo "To run the shared subscription example, execute:" | tee -a $LOG_FILE
echo "cd $HOME/aws-iot-device-sdk-python-v2/samples" | tee -a $LOG_FILE
echo "python3 mqtt5_shared_subscription.py \\" | tee -a $LOG_FILE
echo "  --endpoint $IOT_ENDPOINT \\" | tee -a $LOG_FILE
echo "  --ca_file $CERTS_DIR/Amazon-root-CA-1.pem \\" | tee -a $LOG_FILE
echo "  --cert $CERTS_DIR/device.pem.crt \\" | tee -a $LOG_FILE
echo "  --key $CERTS_DIR/private.pem.key \\" | tee -a $LOG_FILE
echo "  --group_identifier consumer" | tee -a $LOG_FILE

# Ask if user wants to clean up resources
echo "" | tee -a $LOG_FILE
echo "==================================================" | tee -a $LOG_FILE
echo "CLEANUP CONFIRMATION" | tee -a $LOG_FILE
echo "==================================================" | tee -a $LOG_FILE
echo "Do you want to clean up all created resources? (y/n): " | tee -a $LOG_FILE
read -r CLEANUP_CHOICE

if [[ $CLEANUP_CHOICE =~ ^[Yy]$ ]]; then
    echo "Cleaning up resources..." | tee -a $LOG_FILE
    
    # Detach policies from certificate
    echo "Detaching policies from certificate..." | tee -a $LOG_FILE
    log_cmd "aws iot detach-policy --policy-name $POLICY_NAME --target $CERTIFICATE_ARN"
    log_cmd "aws iot detach-policy --policy-name $SHARED_POLICY_NAME --target $CERTIFICATE_ARN"
    
    # Detach certificate from thing
    echo "Detaching certificate from thing..." | tee -a $LOG_FILE
    log_cmd "aws iot detach-thing-principal --thing-name $THING_NAME --principal $CERTIFICATE_ARN"
    
    # Update certificate status to INACTIVE
    echo "Setting certificate to inactive..." | tee -a $LOG_FILE
    log_cmd "aws iot update-certificate --certificate-id $CERTIFICATE_ID --new-status INACTIVE"
    
    # Delete certificate
    echo "Deleting certificate..." | tee -a $LOG_FILE
    log_cmd "aws iot delete-certificate --certificate-id $CERTIFICATE_ID"
    
    # Delete thing
    echo "Deleting thing..." | tee -a $LOG_FILE
    log_cmd "aws iot delete-thing --thing-name $THING_NAME"
    
    # Delete policies
    echo "Deleting policies..." | tee -a $LOG_FILE
    log_cmd "aws iot delete-policy --policy-name $POLICY_NAME"
    log_cmd "aws iot delete-policy --policy-name $SHARED_POLICY_NAME"
    
    echo "Cleanup complete!" | tee -a $LOG_FILE
else
    echo "Resources were not cleaned up. You can manually clean them up later." | tee -a $LOG_FILE
    echo "To clean up resources, run the following commands:" | tee -a $LOG_FILE
    echo "aws iot detach-policy --policy-name $POLICY_NAME --target $CERTIFICATE_ARN" | tee -a $LOG_FILE
    echo "aws iot detach-policy --policy-name $SHARED_POLICY_NAME --target $CERTIFICATE_ARN" | tee -a $LOG_FILE
    echo "aws iot detach-thing-principal --thing-name $THING_NAME --principal $CERTIFICATE_ARN" | tee -a $LOG_FILE
    echo "aws iot update-certificate --certificate-id $CERTIFICATE_ID --new-status INACTIVE" | tee -a $LOG_FILE
    echo "aws iot delete-certificate --certificate-id $CERTIFICATE_ID" | tee -a $LOG_FILE
    echo "aws iot delete-thing --thing-name $THING_NAME" | tee -a $LOG_FILE
    echo "aws iot delete-policy --policy-name $POLICY_NAME" | tee -a $LOG_FILE
    echo "aws iot delete-policy --policy-name $SHARED_POLICY_NAME" | tee -a $LOG_FILE
fi

echo "" | tee -a $LOG_FILE
echo "Script execution completed. See $LOG_FILE for details." | tee -a $LOG_FILE
```
+ For API details, see the following topics in *AWS CLI Command Reference*.
  + [AttachPolicy](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/AttachPolicy)
  + [AttachThingPrincipal](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/AttachThingPrincipal)
  + [CreateKeysAndCertificate](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/CreateKeysAndCertificate)
  + [CreatePolicy](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/CreatePolicy)
  + [CreateThing](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/CreateThing)
  + [DeleteCertificate](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/DeleteCertificate)
  + [DeletePolicy](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/DeletePolicy)
  + [DeleteThing](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/DeleteThing)
  + [DescribeEndpoint](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/DescribeEndpoint)
  + [DetachPolicy](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/DetachPolicy)
  + [DetachThingPrincipal](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/DetachThingPrincipal)
  + [GetCallerIdentity](https://docs.aws.amazon.com/goto/aws-cli/sts-2011-06-15/GetCallerIdentity)
  + [UpdateCertificate](https://docs.aws.amazon.com/goto/aws-cli/iot-2015-05-28/UpdateCertificate)