# rmlint > Identify duplicate files or directories, and other filesystem issues. > More information: . - Check a directory for duplicates, empty files, and other issues: `rmlint {{path/to/directory}}` - Delete duplicate files found by an execution of `rmlint`: `./rmlint.sh` - Find duplicate directory trees: `rmlint --merge-directories {{path/to/directory}}` - Mark files at lower path [d]epth as originals: `rmlint --rank-by={{d}} {{path/to/directory}}` - Mark files with shortest name [l]ength as originals: `rmlint --rank-by={{l}} {{path/to/directory}}` - Find only duplicates that have the same filename in addition to the same contents: `rmlint --match-basename {{path/to/directory}}` - Find all duplicates with the same extension: `rmlint --match-extension {{path/to/directory}}`