Find files with SQL-like queries. More information: https://github.com/jhspetersson/fselect.
fselect size, path from {{path/to/directory}} where name = {{'*.cfg'}} or name = {{'*.tmp'}}
fselect path from {{path/to/directory}} where width = height
fselect path from {{path/to/directory}} where genre = {{Rap}} and bitrate = {{320}} and mp3_year lt {{2000}}
fselect size, path from {{path/to/directory}} limit {{5}} into json
fselect "{{MIN(size), MAX(size), AVG(size), SUM(size), COUNT(*)}} from {{path/to/directory}}"