How to compare two albums?

[NeiNei]

Hi Martin,
just out of curiosity.
Would there be also a DigiKam built-in solution for this problem? If not 
something with GUI outside DigiKam?

Thanks,
NeiNei

On 08.02.2018 23:34, Martin Burnicki wrote:
> CD.Graesser wrote:
>> How can i compare  1700 filtered images (all from 2017 with star rating
>> 4) with  a folder/album  that contains  1500 images to find the missing
>> ones and copy only those.
>>
>> The problem came up while i wanted to copy the 1700 filtered images into
>> a new album, but after 1500 image the harddrive was full and the copying
>> stopped. How do i know which are missing?
> 
> Albums are simply directories, so you could just open a command line
> window, list the files, pipe the output into a text file and compare the
> text files from both directories.
> 
> The exact commands depend on the OS you are running: Linux? Windows?
> 
> Martin
>