Rudimentary AWS credentials observation tool, written for python 3.x, requires botocore module to be installed (packaged with boto3 module).

aws_cred_check_tool

#!/usr/bin/env python3

import os
import traceback
from botocore import exceptions, session

try:
    session_obj = session.get_session()
    credentials = session_obj.get_credentials()

    if credentials is None:
        print("Credentials we're not found on the system.")
    else:
        access_key = credentials.access_key
        print(f"Access key ID: {access_key}")

        secret_key = credentials.secret_key
        print(f"Secret Key: {secret_key}")

        region = session_obj.get_config_variable('region')
        print(f"Region: {region}")

    home_path = os.environ.get('HOME')

    if home_path is not None:
        creds_path = f"{home_path}/.aws/credentials"

        if os.path.exists(creds_path):
            with open(creds_path, 'r') as f:
                print(f"{creds_path} file contents:")

                for l in f.readlines():
                    print(l)
        else:
            print(f"Credentials file missing ({creds_path}).")

    access_key_var = os.environ.get('AWS_ACCESS_KEY_ID')
    secret_key_var = os.environ.get('AWS_SECRET_ACCESS_KEY')

    if access_key_var is not None:
        if access_key_var in '':
            print("Environment variable AWS_ACCESS_KEY_ID has a blank value.")
        else:
            print(f"Environment variable AWS_ACCESS_KEY_ID={access_key_var}")
    else:
        print(f"Environment variable AWS_ACCESS_KEY_ID not found.")

    if secret_key_var is not None:
        if secret_key_var in '':
            print("Environment variable AWS_SECRET_ACCESS_KEY has a blank value.")
        else:
            print(f"Environment variable AWS_SECRET_ACCESS_KEY={secret_key_var}")
    else:
        print(f"Environment variable AWS_SECRET_ACCESS_KEY not found.")

except exceptions.ConfigParseError:
    print("Configuration file is malformed.")
except Exception:
    print("An error occurred.")
    traceback.print_exc()

Download, make it executable, and then run.

chmod +x <filename>
./<filename>