interface IArgV {
    commands: {
        [key: string]: string;
    };
    booleans: {
        [key: string]: string;
    };
    definitions: {
        [key: string]: string;
    };
}
interface IParsedArgV {
    commands: {
        [key: string]: number;
    };
    booleans: {
        [key: string]: boolean;
    };
    definitions: {
        [key: string]: string;
    };
}
declare class Util {
    private static instance;
    private constructor();
    static getInstance(): Util;
    /**
     * To be used in command line applications to parse the argument vector provided to the cli.
     *
     * @param argv process.argv
     * @param config
     */
    parseArgVector(argv: string[], config: IArgV): IParsedArgV;
    /**
     * Update the version property in the file `package.json`. If the `package.json` is in another
     * directory you may override the location by specifying the second parameter.
     */
    changePackageVersion(version: string, filePath?: string): void;
    /**
     * Execute a system command such as `pwd`. When setting the `print` argument to true
     * the promise will resolve or reject to an empty string and all the output from the command
     * will be redirected to the current stdout stream.
     *
     * NOTE: This function only supports one command at a time. Use `exec` for any combination of
     * commands.
     */
    execCmd(cmd: string, print?: boolean): Promise<string>;
    /**
     * Execute a system command such as `pwd`. Note that some output may be missing since some
     * programs print to stderr and we are only resolving the output of stdout.
     */
    exec(cmd: string): Promise<string>;
    /**
     * Returns a list of all the files that have not yet been committed.
     */
    getModifiedFiles(): Promise<string[]>;
    /**
     * Move files and/or directories recursively. If the `src` parameter ends with `/` then only
     * the contents of the directory will be moved to the destination. Otherwise the whole `src`
     * directory will be moved to the destination.
     */
    move(src: string, dest: string): string[];
    /**
     * Read the json contents from a file. Returns null if there is an issue while parsing.
     */
    readJSON(name: string, path?: string): object | null;
    /**
     * Write the contents to a file. Returns a boolean indicating if writing was successful.
     */
    writeJSON(contents: any, name: string, path?: string): boolean;
    /**
     * Quick and dirty string replacement. The `template` needs to have strings in the form
     * of `%{<key>}` where `<key>` is one of the keys specified in `properties`.
     */
    replaceStrings(template: string, properties: object): string;
}
declare const util: Util;
export { Util, util, };