How to delete all files of a specific format?

RobertJSawyer · 11-04-2018, 11:10 PM

When I use Calibre to transfer a book to my Kobo reader, it creates a file with the extension .kepub and keeps it on my computer (not .kepub.epub as used on the Kobo device; Calibre stores these in its own library as just .kepub).

Of course, these files can be regenerated anytime from the original file (.epub, .azw3, or whatever) as needed -- but I've now got over a gigabyte of these .kepub files now in my Calibre library, and I'd like to get rid of them.

Is there an easy way from within Calibre (so that Calibre will know about it) to delete .kepub files while keeping the library entries for the same book in other formats intact? Many thanks!

BetterRed · 11-05-2018, 12:04 AM

Select all books, then from the Remove Books drop-down select "Remove files of a specific format from selected books...", then select KEPUB and press OK.

I have the option set to Alt+Del

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BR

Sirtel · 11-05-2018, 12:05 AM

Search for format:kepub

Select all the results

Right-click on the Remove icon and choose "Remove files of a specific format from selected books"

RobertJSawyer · 11-05-2018, 12:28 AM

Thank you both!

davidfor · 11-05-2018, 02:06 AM

Is there any reason you aren't using the KoboTouchExtended driver? That does the transformation from epub to kepub on the fly and doesn't add it to the calibre library. A conversion will be needed if you don't have an epub, but they can be used on the tolino as well.

11-04-2018, 11:10 PM	#1
RobertJSawyer Guru Posts: 730 Karma: 3871570 Join Date: Jun 2006 Location: Toronto Device: Kobo Libra 2, Clara 2E, and Clara HD; Kindle PaperWhite	How to delete all files of a specific format? When I use Calibre to transfer a book to my Kobo reader, it creates a file with the extension .kepub and keeps it on my computer (not .kepub.epub as used on the Kobo device; Calibre stores these in its own library as just .kepub). Of course, these files can be regenerated anytime from the original file (.epub, .azw3, or whatever) as needed -- but I've now got over a gigabyte of these .kepub files now in my Calibre library, and I'd like to get rid of them. Is there an easy way from within Calibre (so that Calibre will know about it) to delete .kepub files while keeping the library entries for the same book in other formats intact? Many thanks!

11-05-2018, 12:04 AM	#2
BetterRed null operator (he/him) Posts: 20,565 Karma: 26954694 Join Date: Mar 2012 Location: Sydney Australia Device: none	Select all books, then from the Remove Books drop-down select "Remove files of a specific format from selected books...", then select KEPUB and press OK. I have the option set to Alt+Del BR

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11-05-2018, 12:05 AM	#3
Sirtel Grand Sorcerer Posts: 10,113 Karma: 224756896 Join Date: Jan 2014 Location: Estonia Device: Kobo Sage & Libra 2	Search for format:kepub Select all the results Right-click on the Remove icon and choose "Remove files of a specific format from selected books"

11-05-2018, 12:28 AM	#4
RobertJSawyer Guru Posts: 730 Karma: 3871570 Join Date: Jun 2006 Location: Toronto Device: Kobo Libra 2, Clara 2E, and Clara HD; Kindle PaperWhite	Thank you both!

11-05-2018, 02:06 AM	#5
davidfor Grand Sorcerer Posts: 24,907 Karma: 47303748 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	Is there any reason you aren't using the KoboTouchExtended driver? That does the transformation from epub to kepub on the fly and doesn't add it to the calibre library. A conversion will be needed if you don't have an epub, but they can be used on the tolino as well.

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