/**
 * Options for the `run` function.
 */
export interface RunOptions {
    /**
     * Wokring directory.
     *
     * @default process.cwd()
     */
    readonly cwd?: string;
    /**
     * Capture the output of the command and return to caller.
     *
     * @default - no capture, output is printed to stdout.
     */
    readonly capture?: boolean;
    /**
     * Run the command inside a shell.
     *
     * @default false
     */
    readonly shell?: boolean;
    /**
     * Properties to add to 'env'
     */
    readonly modEnv?: Record<string, string>;
}
/**
 * Run a shell command and return the output.
 * Throws if the command fails.
 *
 * @param command command (e.g 'git commit -m')
 */
export declare function run(command: string, options?: RunOptions): string;
/**
 * Run a shell command and return a boolean indicating success or failure.
 *
 * Use this is when the result of the command informs a decision but is otherwise inconsequential.
 *
 * @param command command (e.g 'git ls-remote --exit-code')
 */
export declare function check(command: string, options?: RunOptions): boolean;
/**
 * Return the path under which a program is available.
 * Empty string if the program is not installed.
 *
 * @param program program to check (e.g 'git')
 */
export declare function which(program: string): string;