Subject: Re: [linux-audio-dev] mp3 mess help
From: Frank NEUMANN (frank.neumann_AT_st.com)
Date: Wed Oct 27 2004 - 12:36:23 EEST
Hi list,
Jens M Andreasen <jens.andreasen_AT_chello.se> wrote:
[..]
> > I have a full partition with them in it but it is obvious most of them
> > are there multiple times with different non discriptive names..ouch:(
> >
> >
> > Is there a way I can searh the mp3 to find which are the same/different
> > using the actual mp3 binary data??
> >
>
> Short version:
>
> 1) Sort them (by binary content.)
>
> 2) Delete duplicates.
>
> 3) ...
>
> 4) Profit! :)
>
>
> I would probably only keep the path to the mp3 in the sorted structure,
> and then open (and close) them for comparison as needed.
>
> 'man qsort' is your friend.
My suggestion would be like this (if we are really talking about byte-by-byte
identical files):
find <path_to_mp3_directory> -iname "*.mp3" -exec md5sum {} \; | sort >log.txt
This will give you a logfile, "log.txt" containing all files, sorted by md5
checksum, _including_ duplicates. Whenever you see two identical md5 sums
following each other, you have a duplicate.
There are perhaps more geeky ways to use awk etc now to actually print out
the names of the duplicates, but others will have to continue from here.
Greetings,
Frank
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