Actually rc stands for. runtime configuration.the rc files configure what software (application) and services are configured to start at runtime, therefore: runtime configuration. —— wiki
在Linux下，rc（runtime configuration）代表运行时配置。表示在某种运行环境下自动执行的配置文件。前端常用的例如.babelrc、.jsbeautifyrc。
原文：https://www.cnblogs.com/nanchen/p/9481097.html