files reordering

[pklat]

I've added another script to my project:

https://gitlab.com/pklat/reiso

its reorder.pm

it tries to find similar files, so that tar+7z later can provide best compression. the output is a file list which can be fed to tar with '--files-from=FILE'
this is done by compressing every two files!
since there could be many combinations, this is of course very very slow!!!
I might try to optimize it later.

please edit the script options first, if you wanna try it.

sorry, if this idea has already been used.

thanks.

[CompressMaster]

Hello pklat,

I have question about your script - is your script able to process also already compressed files such as JPG or PDF?

What about EXE/GUI implementation? I am not very familiar with perl scripting...

thanks.

Best regards,
CompressMaster

[necros]

+1 for gui

[pklat]

hi.
thanks for the replies.
this is mainly intended for backup, where you got a lot of small files.
I doubt .jpg would benefit as it is already heavily compressed and two jpegs don't have much similarities. pdf might be better in that matter.

I have made the script for a specific case:
I've got a tar.gz backup of 8 debian servers ( same version of debian).
there are a lot of duplicates and similar files; the idea is to put them all into one huge .tar in best possible order, so that 7z or similar with large dict size can pack them better. as it is, iirc, 7z only sorts files by extension.

I'll try to make gui later, but this is for Linux.

[CompressMaster]

Could I request you for GUI for Windows (or at least command line) of your script? I´m using only Windows platform...

Thanks.

Best regards,
CompressMaster