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Vlastimil Burián
Asked: 2024-10-22 04:06:31 +0800 CST

Flatpak 安装的 Calibre：找不到电子书转换命令

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在我的基于 Ubuntu 24.04 LTS（Noble）的 Linux Mint 22 Cinnamon（Wilma）上。

尽管我最初不喜欢 Calibre，但我最终还是通过 Flatpak 安装了它：

$ flatpak install flathub com.calibre_ebook.calibre

安装成功，但是shell找不到ebook-convert命令（官方手册页链接）。

选择 Flatpak 版本的理由：

此时，请在此处阅读变更日志： https: //calibre-ebook.com/whats-new

很明显，开发人员非常活跃。打包版本是 Release: 7.6 [01 Mar, 2024]，而 Flatpak 版本是最新可用版本（Release: 7.20 [18 Oct, 2024]）。

尽管我原本以为我只会使用电子书转换命令，但这个软件可能会让我感到惊讶，...

conversion

1 个回答

  1. Best Answer

    解决此问题的一种方法是：

    $ sudo updatedb
[sudo] password for vlastimil:

# - No output means it is still running.
# - Once it is finished, your prompt re-appears.
# - It can take much time if not running fast SSDs.

    $ locate ebook-convert

/var/lib/flatpak/app/com.calibre_ebook.calibre/x86_64/stable/3ffcc2f6b264f6549554e88892c32eb48cd83386b8629e839bb693d2010aeaa6/files/bin/ebook-convert
/var/lib/flatpak/app/com.calibre_ebook.calibre/x86_64/stable/3ffcc2f6b264f6549554e88892c32eb48cd83386b8629e839bb693d2010aeaa6/files/lib/calibre/ebook-convert
/var/lib/flatpak/app/com.calibre_ebook.calibre/x86_64/stable/3ffcc2f6b264f6549554e88892c32eb48cd83386b8629e839bb693d2010aeaa6/files/lib/calibre/bin/ebook-convert
/var/lib/flatpak/app/com.calibre_ebook.calibre/x86_64/stable/3ffcc2f6b264f6549554e88892c32eb48cd83386b8629e839bb693d2010aeaa6/files/lib/calibre/resources/ebook-convert-complete.calibre_msgpack
/var/lib/flatpak/app/com.calibre_ebook.calibre/x86_64/stable/3ffcc2f6b264f6549554e88892c32eb48cd83386b8629e839bb693d2010aeaa6/files/share/bash-completion/completions/ebook-convert

    您可以看到两个选项。如果您尝试这个，您会得到一个错误，但第二个可以工作：

    /var/lib/flatpak/app/com.calibre_ebook.calibre/x86_64/stable/3ffcc2f6b264f6549554e88892c32eb48cd83386b8629e839bb693d2010aeaa6/files/lib/calibre /bin/ ebook-convert：加载共享库时出错：libcalibre-launcher.so：无法打开共享对象文件：没有此文件或目录

    由于我使用的是 Bash，因此我可以简单地为正确的文件创建一个别名（即，/bin/之前没有ebook-convert像这样：

    alias ebook-convert='/var/lib/flatpak/app/com.calibre_ebook.calibre/x86_64/stable/3ffcc2f6b264f6549554e88892c32eb48cd83386b8629e839bb693d2010aeaa6/files/lib/calibre/ebook-convert'

    工作命令：

    $ ebook-convert

Usage: ebook-convert input_file output_file [options]

Convert an e-book from one format to another.

input_file is the input and output_file is the output. Both must be specified as the first two arguments to the command.

The output e-book format is guessed from the file extension of output_file. output_file can also be of the special format .EXT where EXT is the output file extension. In this case, the name of the output file is derived from the name of the input file. Note that the filenames must not start with a hyphen. Finally, if output_file has no extension, then it is treated as a folder and an "open e-book" (OEB) consisting of HTML files is written to that folder. These files are the files that would normally have been passed to the output plugin.

After specifying the input and output file you can customize the conversion by specifying various options. The available options depend on the input and output file types. To get help on them specify the input and output file and then use the -h option.

For full documentation of the conversion system see
https://manual.calibre-ebook.com/conversion.html

Whenever you pass arguments to ebook-convert that have spaces in them, enclose the arguments in quotation marks. For example: "/some path/with spaces"

Options:
  --version       show program's version number and exit

  -h, --help      show this help message and exit

  --list-recipes  List builtin recipe names. You can create an e-book from a
                  builtin recipe like this: ebook-convert "Recipe Name.recipe"
                  output.epub


Created by Kovid Goyal <[email protected]>

    如果您有更好的解决方案，请发布，谢谢。

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