import * as child_process from 'child_process';
/**
 * A shell command that does what you want
 *
 * Is platform-aware, handles errors nicely.
 */
export declare function shell(command: string | string[], options?: ShellOptions): Promise<string>;
export interface ShellOptions extends child_process.SpawnOptions {
    /**
     * Properties to add to 'env'
     */
    readonly modEnv?: Record<string, string>;
    /**
     * Don't fail when exiting with an error
     *
     * @default false
     */
    readonly allowErrExit?: boolean;
    /**
     * Whether to capture stderr
     *
     * @default true
     */
    readonly captureStderr?: boolean;
    /**
     * Pass output here
     *
     * @default stdout unless quiet=true
     */
    readonly output?: NodeJS.WritableStream;
    /**
     * Only return stderr. For example, this is used to validate
     * that when CI=true, all logs are sent to stdout.
     *
     * @default false
     */
    readonly onlyStderr?: boolean;
    /**
     * Don't log to stdout
     *
     * @default always
     */
    readonly show?: 'always' | 'never' | 'error';
}
/**
 * rm -rf reimplementation, don't want to depend on an NPM package for this
 */
export declare function rimraf(fsPath: string): void;
export declare function addToShellPath(x: string): void;