interface Options {
    /** Function to run when data is returned from exec */
    onData?: (data: string) => any;
    /** Function to run when error occurs */
    onError?: (err: string) => any;
    /** Function to run when exec ends */
    onClose?: (code: number) => any;
}
/**
 * A better exec with promises etc.
 */
export declare const exec: (command: string, opts?: Options | undefined) => Promise<string>;
export {};