In the answers to Manually set track listen count in Banshee?, it describes how to get at the database that banshee uses to save all track information.
Once you're connected to the database, on the execute query table, paste
select tweaked_track, count(*) from
(select replace(replace(replace(title, ' ', ''), '-', ''), '.', '') as tweaked_track
group by tweaked_track
order by 2, 1 desc;
into the SQL string box, then click 'execute query'. This will show you all the tracks you have with the same title ignoring spaces, dashes, and periods. If there are other characters you want to ignore, add them to the query in the same pattern. (IE add
replace( before the first existing "replace" and after the last ")" on that line, add
, '[character you want removed]', '').
(I don't know how much you know about sql - if you need more details, post a comment.)
This will give you a list of titles. You will have to actually do the delete yourself.
There may be a better way of doing this, but if there is, I don't know about it.
Once you have a big list of files to be deleted (either from my method or from
fdupes like others have mentioned), put the list of files you want to delete into a text directory. Make sure one of the following is true:
Option #1: The filenames contain full path. For example the file might contain:
Option #2: The filenames contain relative path, and the file with the list of filenames is saved in the parent folder. For example, if your file list was saved in
/home/doneill/music/, it would contain:
In either case, open up a terminal window, and change to the folder that contains the file with the list
cd /home/doneill/music/ for example.
for a in `cat filelist.txt`; do echo $a; done
(Replacing filelist.txt with the name of the file with the list). This should spit out a list of all the files you want to delete. Take a moment to double check the list. If it is right, type:
for a in `cat filelist.txt`; do rm $a; done
This basically tells your computer: for each line in the file
filelist.txt, remove a file with the name listed.