fslint (no longer in Debian) and dupeguru may be of interest to you. I have used both.
RLH
- How to compare contents of two folders against thir... Alexander V. Makartsev
- Re: How to compare contents of two folders aga... Nicolas George
- Re: How to compare contents of two folders... Alexander V. Makartsev
- Re: How to compare contents of two fol... Russell L. Harris
- Re: How to compare contents of two folders aga... tomas
- How to compare one folder to one directory... Loris Bennett
- Re: How to compare one folder to one d... Reco
- Re: How to compare one folder to one d... tomas
- Re: How to compare one folder to o... Michael Kjörling
- Re: How to compare one folder... Nicolas George
- Re: How to compare one folder to o... John Hasler
- Re: How to compare one folder... tomas
- Re: How to compare one fo... Loris Bennett
