process.execPath 属性返回启动 Node.js 进程的可执行文件的绝对路径名。符号链接(如果有)会被解析。
process.execPath
¥The process.execPath property returns the absolute pathname of the executable that started the Node.js process. Symbolic links, if any, are resolved.
'/usr/local/bin/node' 拷贝
'/usr/local/bin/node'