Verify a shell command in an AWS Lambda function

lambda_shellcheck.py

import subprocess

def lambda_handler(event, context):
    shell_command = event.get("shell_command", "")
    with open("/tmp/script.sh", "w") as f:
        f.write(shell_command)
    try:
        subprocess.check_call("sh -n /tmp/script.sh", shell=True)
    except subprocess.CalledProcessError:
        raise ValueError("'shell_command' does not contain a valid shell command")