-l, --list Only list the identical files found. Do not hardlink -a, --maxsize=NUMBER Process only files smaller than MAXSIZE -i, --minsize=NUMBER Process only files larger than MINSIZE -w, --wildcard=wildcard Process only files matching <wildcard>. -r, --rexexp=regexp Process only files matching <regexp>. -q, --quiet Suppres any output -s, --sort filesize Sort dupegroups by filesize -s, --sort cardinality Sort dupegroups by cardinality -h, --help This help