Exclude files when run `rmlint`

To exclude files, using find command, then pass the parameter - to rmlint as folder name

$ find /target/dir -type f ! -name '*.nib' ! -name '*.icon' ! -name '*.plist' | rmlint [options] -

For only search specific type of file, can use following command:

find /mm -iname "*.DFF" -type f | rmlint -T df --config=sh:handler=hardlink -

References