# fselect > 使用类似SQL的查询查找文件。 > 更多信息请访问: 。 - 从给定目录中的临时文件或配置文件中选择完整路径和大小: `fselect size, path from {{path/to/directory}} where name = {{'*.cfg'}} or name = {{'*.tmp'}}` - 查找正方形图片: `fselect path from {{path/to/directory}} where width = height` - 查找老派嘻哈音乐320kbps的MP3文件: `fselect path from {{path/to/directory}} where genre = {{Rap}} and bitrate = {{320}} and mp3_year lt {{2000}}` - 仅选择前5个结果并以JSON格式输出: `fselect size, path from {{path/to/directory}} limit {{5}} into json` - 使用SQL聚合函数计算目录中文件的最小、最大和平均大小: `fselect "{{MIN(size), MAX(size), AVG(size), SUM(size), COUNT(*)}} from {{path/to/directory}}"`