On my Linux Mint 22 Cinnamon (Wilma) based on Ubuntu 24.04 LTS (Noble). I ended up installing Calibre in spite my initial dislike, via Flatpak:

$ flatpak install flathub com.calibre_ebook.calibre

The installation was successful, **but the the shell can't find the ebook-convert command** (official manual page link ). *** Reasoning about choosing Flatpak version: At this point of time, reading upon the changelog here: https://calibre-ebook.com/whats-new It is obvious the developer(s) are very active. The packaged version is Release: 7.6 [01 Mar, 2024], whereas the Flatpak version is the latest available (Release: 7.20 [18 Oct, 2024]). In spite, I originally have thought I would only use the ebook conversion command, this software might *surprise me*,..

epubcat book.epub 1 3 # outputs plain text of pages 1 through 3 I don’t know if epubs have the concept of “pages.” If not, perhaps we can say each 400 chars are a page? A general solution that works for other ebook formats is better (mobi, azw3, etc). My own thoughts are currently on first converting the book to text via ebook-convert or pandoc and then extracting the needed amount, but this seems awfully inefficient as I intend to only get a little of the beginning of the content. You can download an example file that can be used for testing [here](http://82.102.11.148:8080//tmp/Time%20to%20Put%20Your%20Galleons%20Where%20Your%20Mouth%20Is%20-%20Tsume%20Yuki.epub) .

I have a programming book in EPUB format and I'm trying to convert it to TXT. For that I'm using the utility **ebook-convert** from **calibre**. The problem is that the standard usage: ebook-convert book.epub book.txt removes indentation in source code samples. E.g. a sample in the book looks so: class A { private int a; } But in the resulted TXT: class A { private int a; } After reading the utility's man page I've tried the following options: --keep-ligatures --pretty-print --change-justification=original but with no result. How to achieve it?

### Background ### Debian testing (bullseye) kernel 5.9.0, KDE, calibre 5.5.0 ### Symptoms ### Calibre does not start, not even its GUI appears. Console shows a Python-related error message about _Py_FatalErrorFunc.

according to a 4 year-old forum entry at Calibre, they started working on the feature of being able to highlight text, 4 years ago. Does anyone know how if it is implemented yet and how to use it?

I am using find to return the list of files from a directory and its subdirectories: find $directory -type f -name "*.epub" Then I want to use a command that requires the input and output filenames to be specified: ebook-convert input.epub output.txt I want to convert each .epub to .txt such that the output is stored in the same directory/subdirectory as the input. Simple piping does not work. find $directory -type f -name "*.epub" | ebook-convert How do I do this?

I allowed Calibre access to my Library and it decided to change all my folder names adding (123) after every folder. (Replace 123 with random numbers.) What would be best command to use on Linux (Debian) terminal to remove all " (???)" strings from folder names?

I am trying to use Calibre to convert a PDF file to Epub format with a fixed layout, but I am not able to convert it. Can somebody tell me the steps to convert in a fixed layout in Calibre?

This code converts epub file to txt file: ebook-convert "book.epub" "book.txt" How can I use it to convert all .epub files in the directory? I am using Ubuntu. ### Code from os import listdir, rename from os.path import isfile, join import subprocess # return name of file to be kept after conversion. # we are just changing the extension. azw3 here. def get_final_filename(f): f = f.split(".") filename = ".".join(f[0:-1]) processed_file_name = filename+".azw3" return processed_file_name # return file extension. pdf or epub or mobi def get_file_extension(f): return f.split(".")[-1] # list of extensions that needs to be ignored. ignored_extensions = ["pdf"] # here all the downloaded files are kept mypath = "/home/user/Downloads/ebooks/" # path where converted files are stored mypath_converted = "/home/user/Downloads/ebooks/kindle/" # path where processed files will be moved to, clearing the downloaded folder mypath_processed = "/home/user/Downloads/ebooks/processed/" raw_files = [f for f in listdir(mypath) if isfile(join(mypath, f))] converted_files = [f for f in listdir(mypath_converted) if isfile(join(mypath_converted, f))] for f in raw_files: final_file_name = get_final_filename(f) extension = get_file_extension(f) if final_file_name not in converted_files and extension not in ignored_extensions: print("Converting : "+f) try: subprocess.call(["ebook-convert",mypath+f,mypath_converted+final_file_name]) s = rename(mypath+f, mypath_processed+f) print(s) except Exception as e: print(e) else: print("Already exists : "+final_file_name)

Using calibre from the command line, in debian testing, how can I insert a tag with the syntax being ebook-meta ebook_file --tags rhubarb but for a range of files, but all by the same author so just need the tag of his/her name? This is used for indexing and sorting out books on a Kindle.

As far as the sandbox **"firejail"** is concerned I´ve encountered a phenomenon which isn´t completely clear to me. My understanding has always been that whenever I start a programm/process in **firejail** that process is sandboxed. Fine, that´s clear. I was also of the opinion that whenever that sandboxed process triggers another process that one is by default sandboxed, too. This is the case e.g. when doing this: *"firejail thunderbird"* and then clicking on a link within a mail. So (in my case) **firefox**, which is my default browser, opens up and displays the website the link is referring to. Plus: *firefox is sandboxed, too*. I think this is what it should be like. But: whenever I statrt **calibre** with *"firejail calibre"*, that one is sandboxed. O.K. That´s fine too. Now for the tricky part: When trying to open a pdf-file within the sandoxed calibre my default pdf-reader (**evince**) fires up but ***isn´t sandboxed***. *"firejail --tree"* doesn´t list it, nor does **firetools**. I also can shutdown calibre and evince (displaying) the pdf-file remains open. Can you tell me anything about that phenomenon? Tnx a lot in advance. Rosika

I'm just learning Unix and noticed my Calibre Library is set to drwxrwxrwx. I read that changing it's permissions will cause errors. I always add reputable files to the database, but it seems like a bad idea to have a database with open permissions. Do I have any basis to worry about?

This is not specifically a Linux question. But I was wondering if I can get this done in BASH. I have multiple HTML files in a folder and I want to generate a HTML table of content. So for *file1.html and file2.html*, I want to generate a file like this :

Table of Contents

file1
file2

The process is simple but can get tedious and confusing when you have more than ten files with long names. I use the table of content file to convert the HTML files to an ebook format using Calibre. If it can be done automatically it'll save a lot of trouble. Thank you for your time. Any help would be appreciated.

I'm trying to use calibre2opds to put my library on my server (fedora21). Everything works fine, I can navigate, until I want to download an epub. I get en error 403: You don't have permission to access /Anonyme/Le Livre Sans Nom (41)/Le Livre Sans Nom - Anonyme.epub on this server. I access the server by 192.168.1.21/calibre. Calibre2ops put everything in /mnt/Sardaukar/web/calibre The HTML files are put by calibre2opds in /mnt/Sardaukar/web/calibre/_catalog and the actual epubs in, for instance /mnt/Sardaukar/web/calibre/Anonyme/Le Livre Sans Nom (41)/Le Livre Sans Nom - Anonyme.epub and the httpd file looks like Alias /calibre /mnt/Sardaukar/web/calibre/_catalog AllowOverride All Options Indexes FollowSymLinks Require all granted I did it before, even with an .htaccess and it worked before, but now, I have no idea what is wrong. The permissions on /mnt/Sardaukar/web/calibre are 770, and chown by me:www-users After more research, I found in the error log: [Mon Jun 22 21:06:59.774348 2015] [authz_core:error] [pid 10805] [client 192.168.1.5:51992] AH01630: client denied by server configuration: /var/www/html/Anonyme, referer: http://192.168.1.21/calibre/book_0 >>>/book_41.html Why does it try to read the epub in /var/www/html??

I want to convert a chm file to a pdf file. Calibre's command ebook-convert ebook-convert 1.chm 1.pdf only converts the first 7 pages of the chm file into a pdf file, while the chm file has much more pages. How can I convert the whole chm file into a pdf file? Thanks.

I have recently installed Calibre, and it works great, however I have some problems with handling of files by this program: * Folders open in `baobab. To open folder I just need to click on a book and then select: Path: Click to open`. * CBR files open in print-preview. Gobal file associations are sensible (I have checked `~HOME/.config/mimeapps.list`) and cbr files open properly in nautilus. So questions are: * How does Calibre detect file associations. * How to change those associations. I use i3 window manager.

Calibre did not convert my Epub Books to Mobi. It aborts with this Error: TypeError: QPixmap(): argument 1 has unexpected type 'ImageView' This is the full Error Message: calibre 2.20 isfrozen: False is64bit: True Linux-3.18.6-1-ARCH-x86_64-with-glibc2.2.5 Linux ('64bit', 'ELF') ('Linux', '3.18.6-1-ARCH', '#1 SMP PREEMPT Sat Feb 7 08:44:05 CET 2015') Python 2.7.9 Linux: ('', '', '') Traceback (most recent call last): File "/usr/lib/calibre/calibre/gui2/device.py", line 1257, in dispatch_sync_event self.sync_to_device(on_card, delete, fmt) File "/usr/lib/calibre/calibre/gui2/device.py", line 1531, in sync_to_device self.iactions['Convert Books'].auto_convert(auto, on_card, format) File "/usr/lib/calibre/calibre/gui2/actions/convert.py", line 76, in auto_convert jobs, changed, bad = convert_single_ebook(self.gui, self.gui.library_view.model().db, book_ids, True, format) File "/usr/lib/calibre/calibre/gui2/tools.py", line 41, in convert_single_ebook d = SingleConfig(parent, db, book_id, None, out_format) File "/usr/lib/calibre/calibre/gui2/convert/single.py", line 151, in __init__ self.setup_pipeline() File "/usr/lib/calibre/calibre/gui2/convert/single.py", line 201, in setup_pipeline self.mw = widget_factory(MetadataWidget) File "/usr/lib/calibre/calibre/gui2/convert/single.py", line 199, in widget_factory self.plumber.get_option_help, self.db, self.book_id) File "/usr/lib/calibre/calibre/gui2/convert/metadata.py", line 55, in __init__ Widget.__init__(self, parent, ['prefer_metadata_cover']) File "/usr/lib/calibre/calibre/gui2/convert/__init__.py", line 62, in __init__ self.setupUi(self) File "/usr/lib/calibre/calibre/gui2/convert/metadata_ui.py", line 51, in setupUi self.cover = ImageView(self.groupBox_4) File "/usr/lib/calibre/calibre/gui2/widgets.py", line 298, in __init__ self._pixmap = QPixmap(self) TypeError: QPixmap(): argument 1 has unexpected type 'ImageView' I'm using Archlinux and Calibre Version 2.20

I have had Calibre installed for some time now and it has always worked fine. Right now I tried to send a book from the Calibre library to my Kindle and I keep getting this message: calibre, version 0.8.38 ERROR: Error: Error communicating with device The reader has no storage card in this slot. Traceback (most recent call last): File "/usr/lib/calibre/calibre/gui2/device.py", line 81, in run self.result = self.func(*self.args, **self.kwargs) File "/usr/lib/calibre/calibre/gui2/device.py", line 411, in _upload_books metadata=metadata, end_session=False) File "/usr/lib/calibre/calibre/devices/usbms/driver.py", line 252, in upload_books path = self._sanity_check(on_card, files) File "/usr/lib/calibre/calibre/devices/usbms/device.py", line 978, in _sanity_check raise ValueError(_('The reader has no storage card in this slot.')) ValueError: The reader has no storage card in this slot. The book can't be sent to the device. I tried to remove Calibre and re-install it but it did not work. **Edit 1)** Immediately after plugging in the kindle and running lsusb i get: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 004: ID 04f2:b307 Chicony Electronics Co., Ltd Bus 001 Device 007: ID 1949:0004 Lab126 Amazon Kindle 3 and after running dmesg | tail i get: [ 7202.714177] usb 1-1.2: new high-speed USB device number 7 using ehci_hcd [ 7202.829763] scsi8 : usb-storage 1-1.2:1.0 [ 7203.831695] scsi 8:0:0:0: Direct-Access Kindle Internal Storage 0100 PQ: 0 ANSI: 2 [ 7203.832255] sd 8:0:0:0: Attached scsi generic sg2 type 0 [ 7203.837580] sd 8:0:0:0: [sdb] 2846720 512-byte logical blocks: (1.45 GB/1.35 GiB) [ 7203.942275] sd 8:0:0:0: [sdb] Write Protect is off [ 7203.942287] sd 8:0:0:0: [sdb] Mode Sense: 0f 00 00 00 [ 7204.052235] sd 8:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 7204.323058] sdb: sdb1 [ 7204.551835] sd 8:0:0:0: [sdb] Attached SCSI removable disk

Can someone please help me to activate the **cover browser** of Calibre in Debian 7.3 KDE desktop (32 bit architecture)? I've tried toggling the arrow button in the bottom-right corner but unlike the other buttons, it yields nothing, not even a tool-tip when I hover over it. I've tried also clicking Preferences > Look&feel > Cover Browser tab but there's nothing usable there. Please see the pictures below. **NOTE:** I'm using version 0.8.51.

I have colors defined in .Xresources. They look lovely on urxvt, and utterly ghastly on Calibre. Calibre does not appear to have any way to disable or override those colors, so is there any way I can invoke Calibre that would ignore my color scheme?