CALIBRE-DEBUG(1)                    calibre                   CALIBRE-DEBUG(1)

NAME
       calibre-debug - calibre-debug

          calibre-debug [E<pi><iota><lambda>o<gamma><?><sigma>]

       Various command line interfaces useful for debugging calibre. With no
       options, this command starts an embedded Python interpreter. You can
       also run the main calibre GUI, the calibre E-book viewer and the
       calibre editor in debug mode.

       It also contains interfaces to various bits of calibre that do not have
       dedicated command line tools, such as font subsetting, the E-book diff
       tool and so on.

       You can also use calibre-debug to run standalone scripts. To do that
       use it like this:
          calibre-debug -e myscript.py -- --option1 --option2 file1 file2 ...

       Everything after the -- is passed to the script. You can also use
       calibre-debug as a shebang in scripts, like this:
          #!/usr/bin/env -S calibre-debug -e -- --

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

[E<Pi>I<Lambda>O<Gamma><?><Sigma>]

       --add-simple-plugin
              <Pi><rho>o<sigma><theta><?><sigma><tau><epsilon> <?><nu><alpha>
              <alpha><pi><lambda><?> <pi><rho><?><sigma><theta><epsilon><tau>o
              (<pi>.<chi>. <?><nu><alpha>
              <pi><rho><?><sigma><theta><epsilon><tau>o <pi>o<upsilon>
              <alpha><pi>o<tau><epsilon><lambda><epsilon><?><tau><alpha><iota>
              <mu><?><nu>o <alpha><pi><?> <?><nu><alpha>
              <alpha><rho><chi><epsilon><?>o .py),
              <kappa><alpha><theta>o<rho><?><zeta>o<nu><tau><alpha><sigma>
              <tau><eta> <delta><iota><alpha><delta><rho>o<mu><?>
              <pi><rho>o<sigma> <tau>o <alpha><rho><chi><epsilon><?>o py
              <pi>o<upsilon> <pi><epsilon><rho><iota><?><chi><epsilon><iota>
              <tau>o<nu> <kappa><?><delta><iota><kappa><alpha> <tau>o<upsilon>
              <pi><rho><?><sigma><theta><epsilon><tau>o<upsilon>.

       --command, -c
              E<kappa><tau><?><lambda><epsilon><sigma><eta>
              <kappa><?><delta><iota><kappa><alpha> Python.

       --debug-device-driver, -d
              A<pi>o<sigma><phi><alpha><lambda><mu><?><tau><omega><sigma><eta>
              <alpha><nu><?><chi><nu><epsilon><upsilon><sigma><eta><sigma>
              <sigma><upsilon><sigma><kappa><epsilon><upsilon><?><sigma>

       --default-programs
              (A<pi>o)<epsilon><gamma><gamma><rho><alpha><phi><?>
              <tau>o<upsilon> calibre <alpha><pi><?> <tau><iota><sigma>
              <pi><rho>o<epsilon><pi><iota><lambda><epsilon><gamma><mu><?><nu><epsilon><sigma>
              <epsilon><phi><alpha><rho><mu>o<gamma><?><sigma>
              <tau><omega><nu> Windows. --default-programs =
              (register|unregister)

       --diff E<kappa><tau><?><lambda><epsilon><sigma><eta> <tau>o<upsilon>
              <epsilon><rho><gamma><alpha><lambda><epsilon><?>o<upsilon>
              <delta><iota><alpha><phi>o<rho><?><nu> <tau>o<upsilon> calibre.
              <Gamma><iota><alpha>
              <pi><alpha><rho><?><delta><epsilon><iota><gamma><mu><alpha>:
              calibre-debug --diff file1 file2

       --edit-book
              Launch the calibre "Edit book" tool in debug mode. As with -g
              use -- to pass command line arguments.

       --exec-file, -e
              E<kappa><tau><?><lambda><epsilon><sigma><eta>
              <kappa><?><delta><iota><kappa><alpha> Python <alpha><pi><?>
              <alpha><rho><chi><epsilon><?>o.

       --explode-book, -x
              A<nu><?><pi><tau><upsilon><xi><eta> <tau>o<upsilon>
              <beta><iota><beta><lambda><?>o<upsilon> <sigma><tau>o<nu>
              <kappa><alpha><theta>o<rho><iota><sigma><mu><?><nu>o
              <phi><?><kappa><epsilon><lambda>o. X<rho><?><sigma><eta>: -x
              <alpha><rho><chi><epsilon><?>o.epub
              <phi><?><kappa><epsilon><lambda>o<sigma>_<epsilon><xi><alpha><gamma><omega><gamma><?><sigma>
              E<xi><?><gamma><epsilon><iota> <tau>o
              <beta><iota><beta><lambda><?>o <sigma><alpha><nu>
              <mu><iota><alpha> <sigma><upsilon><lambda><lambda>o<gamma><?>
              <alpha><pi><?> <alpha><rho><chi><epsilon><?><alpha> HTML
              <kappa><alpha><iota>
              <mu><epsilon><tau><alpha><delta><epsilon><delta>o<mu><?><nu><alpha>,
              <tau><alpha> o<pi>o<?><alpha>
              <mu><pi>o<rho><epsilon><?><tau><epsilon> <nu><alpha>
              <epsilon><pi><epsilon><xi><epsilon><rho><gamma><alpha><sigma><tau><epsilon><?><tau><epsilon>
              <mu><epsilon> <chi><rho><?><sigma><eta> <tau><omega><nu>
              <sigma><upsilon><nu><eta><theta><iota><sigma><mu><?><nu><omega><nu>
              <epsilon><rho><gamma><alpha><lambda><epsilon><?><omega><nu>
              <epsilon><pi><epsilon><xi><epsilon><rho><gamma><alpha><sigma><?><alpha><sigma>
              HTML.
              <Lambda><epsilon><iota><tau>o<upsilon><rho><gamma><epsilon><?>
              <mu><epsilon> <alpha><rho><chi><epsilon><?><alpha> EPUB, AZW3,
              HTMLZ <kappa><alpha><iota> DOCX.

       --export-all-calibre-data
              E<xi><alpha><gamma><omega><gamma><?> <?><lambda><omega><nu>
              <tau><omega><nu> <delta><epsilon><delta>o<mu><?><nu><omega><nu>
              <tau>o<upsilon> calibre
              (<beta><iota><beta><lambda><?><alpha>/<rho><upsilon><theta><mu><?><sigma><epsilon><iota><sigma>/plugins).
              K<alpha><nu>o<nu><iota><kappa><?>, <theta><alpha>
              <sigma><alpha><sigma> <zeta><eta><tau><eta><theta><epsilon><?> o
              <phi><?><kappa><epsilon><lambda>o<sigma>
              <epsilon><xi><alpha><gamma><omega><gamma><?><sigma>
              <kappa><alpha><iota> o<iota>
              <beta><iota><beta><lambda><iota>o<theta><?><kappa><epsilon><sigma>
              <pi><rho>o<sigma> <epsilon><xi><alpha><gamma><omega><gamma><?>.
              M<pi>o<rho><epsilon><?><tau><epsilon>
              <epsilon><pi><?><sigma><eta><sigma> <nu><alpha>
              <tau><iota><sigma>
              <kappa><alpha><theta>o<rho><?><sigma><epsilon><tau><epsilon>
              <omega><sigma> o<rho><?><sigma><mu><alpha><tau><alpha>
              <gamma><rho><alpha><mu><mu><?><sigma>
              <epsilon><nu><tau>o<lambda><?><nu> <gamma><iota><alpha>
              <nu><alpha>
              <pi><alpha><rho><alpha><lambda><epsilon><?><psi><epsilon><tau><epsilon>
              <tau><iota><sigma>
              <epsilon><rho><omega><tau><?><sigma><epsilon><iota><sigma>.
              X<rho><eta><sigma><iota><mu>o<pi>o<iota><?><sigma><tau><epsilon>
              <alpha><pi><?><lambda><upsilon><tau><epsilon><sigma>
              <delta><iota><alpha><delta><rho>o<mu><?><sigma>
              <gamma><iota><alpha> <tau>o <phi><?><kappa><epsilon><lambda>o
              <epsilon><xi><alpha><gamma><omega><gamma><?><sigma>
              <kappa><alpha><iota> <tau><iota><sigma>
              <beta><iota><beta><lambda><iota>o<theta><?><kappa><epsilon><sigma>.
              H <epsilon><iota><delta><iota><kappa><?>
              <lambda><?><xi><eta>-<kappa><lambda><epsilon><iota><delta><?>
              "all" <mu><pi>o<rho><epsilon><?> <nu><alpha>
              <chi><rho><eta><sigma><iota><mu>o<pi>o<iota><eta><theta><epsilon><?>
              <gamma><iota><alpha> <tau><eta><nu>
              <epsilon><xi><alpha><gamma><omega><gamma><?>
              <?><lambda><omega><nu> <tau><omega><nu>
              <beta><iota><beta><lambda><iota>o<theta><eta><kappa><?><nu>.
              <Pi><alpha><rho><alpha><delta><epsilon><?><gamma><mu><alpha><tau><alpha>:
              calibre-debug --export-all-calibre-data  # <gamma><iota><alpha>
              <delta><iota><alpha><delta><rho><alpha><sigma><tau><iota><kappa><?>
              <chi><rho><?><sigma><eta>   calibre-debug
              --export-all-calibre-data /path/to/empty/export/folder
              /path/to/library/folder1 /path/to/library2   calibre-debug
              --export-all-calibre-data /export/folder all  #
              <epsilon><xi><alpha><gamma><omega><gamma><?>
              <?><lambda><omega><nu> <tau><omega><nu>
              <gamma><nu><omega><sigma><tau><?><nu>
              <beta><iota><beta><lambda><iota>o<theta><eta><kappa><?><nu>

       --gui, -g
              Run the GUI with debugging enabled. Debug output is printed to
              stdout and stderr. To pass command line arguments use --
              followed by the arguments, for example: calibre-debug -g --
              /path/to/ebook

       --gui-debug
              E<kappa><tau><?><lambda><epsilon><sigma><eta> <tau>o<upsilon>
              GUI <mu><epsilon> <mu><iota><alpha>
              <kappa>o<nu><sigma><?><lambda><alpha>
              <epsilon><nu><tau>o<pi><iota><sigma><mu>o<?>
              <sigma><phi><alpha><lambda><mu><?><tau><omega><nu>,
              <mu><epsilon>
              <kappa><alpha><tau><alpha><gamma><rho><alpha><phi><?>
              <sigma><tau><eta>
              <sigma><upsilon><gamma><kappa><epsilon><kappa><rho><iota><mu><?><nu><eta>
              <delta><iota><alpha><delta><rho>o<mu><?>. <Gamma><iota><alpha>
              <epsilon><sigma><omega><tau><epsilon><rho><iota><kappa><?>
              <chi><rho><?><sigma><eta> <mu><?><nu>o,
              <chi><rho><eta><sigma><iota><mu>o<pi>o<iota><?><sigma><tau><epsilon>
              <tau><eta><nu> <epsilon><pi><iota><lambda>o<gamma><?> -g
              <gamma><iota><alpha> <nu><alpha>
              <epsilon><kappa><tau><epsilon><lambda><?><sigma><epsilon><tau><epsilon>
              <tau>o GUI <sigma><epsilon>
              <kappa><alpha><tau><?><sigma><tau><alpha><sigma><eta>
              <epsilon><nu><tau>o<pi><iota><sigma><mu>o<?>
              <sigma><phi><alpha><lambda><mu><?><tau><omega><nu>

       --help, -h
              E<mu><phi><?><nu><iota><sigma><eta>
              <mu><eta><nu><?><mu><alpha><tau>o<sigma>
              <beta>o<?><theta><epsilon><iota><alpha><sigma>
              <kappa><alpha><iota> <?><xi>o<delta>o<sigma>

       --implode-book, -i
              <Sigma><?><mu><pi><tau><upsilon><xi><eta>
              <epsilon><nu><?><sigma> <beta><iota><beta><lambda><?>o<upsilon>
              <pi>o<upsilon>
              <alpha><nu><alpha><pi><tau><?><chi><theta><eta><kappa><epsilon>
              <pi><rho>o<eta><gamma>o<upsilon><mu><?><nu><omega><sigma>.
              X<rho><?><sigma><eta>: -i output_dir file.epub
              E<iota><sigma><?><gamma><epsilon><iota> <tau>o
              <beta><iota><beta><lambda><?>o <alpha><pi><?> <tau><alpha>
              <alpha><rho><chi><epsilon><?><alpha> <tau>o<upsilon>
              <phi><?><kappa><epsilon><lambda>o<upsilon> output_dir, o
              o<pi>o<?>o<sigma> <pi><rho><?><pi><epsilon><iota> <nu><alpha>
              <?><chi><epsilon><iota>
              <delta><eta><mu><iota>o<upsilon><rho><gamma><eta><theta><epsilon><?>
              <alpha><pi><?> <mu><iota><alpha>
              <pi><rho>o<eta><gamma>o<?><mu><epsilon><nu><eta>
              <kappa><lambda><?><sigma><eta> <tau><eta><sigma> --explode-book.
              E<pi><iota><beta><epsilon><beta><alpha><iota><?><sigma><tau><epsilon>
              <?><tau><iota>
              <kappa><alpha><theta>o<rho><?><zeta><epsilon><tau><epsilon>
              <tau>o<nu> <?><delta><iota>o <tau><?><pi>o
              <alpha><rho><chi><epsilon><?>o<upsilon> <mu><epsilon>
              <alpha><upsilon><tau><?><nu> <pi>o<upsilon>
              <chi><rho><eta><sigma><iota><mu>o<pi>o<iota><?><sigma><alpha><tau><epsilon>
              <?><tau><alpha><nu> <kappa><?><nu><alpha><tau><epsilon>
              <tau><eta><nu> <alpha><nu><alpha><pi><tau><upsilon><xi><eta>.

       --import-calibre-data
              E<iota><sigma><alpha><gamma><omega><gamma><?> <tau><omega><nu>
              <pi><rho>o<eta><gamma>o<?><mu><epsilon><nu><omega><nu>
              <delta><epsilon><delta>o<mu><?><nu><omega><nu> <pi>o<upsilon>
              <epsilon><xi><?><chi><theta><eta><kappa><alpha><nu>
              <alpha><pi><?> <tau>o Calibre

       --inspect-mobi, -m
              <?><lambda><epsilon><gamma><chi>o<sigma>
              <alpha><rho><chi><epsilon><?>o<upsilon>(<omega><nu>) MOBI
              <sigma><tau><iota><sigma>
              <kappa><alpha><theta>o<rho><iota><sigma><mu><?><nu><epsilon><sigma>
              <delta><iota><alpha><delta><rho>o<mu><?><sigma>

       --kepubify
              M<epsilon><tau><alpha><tau><rho><?><psi><tau><epsilon> <tau>o
              <kappa><alpha><theta>o<rho><iota><sigma><mu><?><nu>o
              <alpha><rho><chi><epsilon><?>o EPUB <sigma><epsilon> KEPUB
              <chi><omega><rho><?><sigma> <nu><alpha>
              <kappa><?><nu><epsilon><tau><epsilon> <pi><lambda><?><rho><eta>
              <mu><epsilon><tau><alpha><tau><rho>o<pi><?>. A<upsilon><tau><?>
              <epsilon><?><nu><alpha><iota> <pi>o<upsilon>
              <kappa><?><nu><epsilon><iota> o o<delta><eta><gamma><?><sigma>
              Kobo <?><tau><alpha><nu>
              <sigma><tau><?><lambda><nu><epsilon><iota>
              <alpha><rho><chi><epsilon><?><alpha> <sigma><tau><eta>
              <sigma><upsilon><sigma><kappa><epsilon><upsilon><?>.

       --paths
              E<xi><alpha><gamma><omega><gamma><?> <tau><omega><nu>
              <delta><iota><alpha><delta><rho>o<mu><?><nu> <pi>o<upsilon>
              <epsilon><?><nu><alpha><iota>
              <alpha><pi><alpha><rho><alpha><?><tau><eta><tau><epsilon><sigma>
              <gamma><iota><alpha> <tau><eta><nu>
              <epsilon><gamma><kappa><alpha><tau><?><sigma><tau><alpha><sigma><eta>
              <tau>o<upsilon>
              <pi><epsilon><rho><iota><beta><?><lambda><lambda>o<nu><tau>o<sigma>
              calibre

       --run-plugin, -r
              E<kappa><tau><epsilon><lambda><?><sigma><tau><epsilon>
              <?><nu><alpha> plugin <pi>o<upsilon>
              <pi><alpha><rho><?><chi><epsilon><iota>
              <delta><iota><epsilon><pi><alpha><phi><?>
              <gamma><rho><alpha><mu><mu><?><sigma>
              <epsilon><nu><tau>o<lambda><?><nu>. <Gamma><iota><alpha>
              <pi><alpha><rho><?><delta><epsilon><iota><gamma><mu><alpha>:
              calibre-debug -r "Plugin name" -- file1 --option1
              <?><lambda><alpha> <?><sigma><alpha>
              <alpha><kappa>o<lambda>o<upsilon><theta>o<?><nu> <tau>o --
              <theta><alpha> <pi><epsilon><rho><?><sigma>o<upsilon><nu>
              <sigma><tau>o <pi><rho><?><sigma><theta><epsilon><tau>o
              <omega><sigma> o<rho><?><sigma><mu><alpha><tau><alpha>.

       --run-test, -t
              E<kappa><tau><epsilon><lambda><?><sigma><tau><epsilon>
              <tau><eta><nu>/<tau><iota><sigma>
              o<nu>o<mu><alpha><sigma><tau><iota><kappa><?><sigma>
              <delta>o<kappa><iota><mu><?><sigma>.
              X<rho><eta><sigma><iota><mu>o<pi>o<iota><?><sigma><tau><epsilon>
              <tau><eta><nu> <epsilon><iota><delta><iota><kappa><?>
              <tau><iota><mu><?> "all" <gamma><iota><alpha> <tau><eta><nu>
              <epsilon><kappa><tau><?><lambda><epsilon><sigma><eta>
              <?><lambda><omega><nu> <tau><omega><nu>
              <delta>o<kappa><iota><mu><?><nu>. E<?><nu> <tau>o
              <?><nu>o<mu><alpha> <tau><eta><sigma>
              <delta>o<kappa><iota><mu><?><sigma>
              <alpha><rho><chi><?><zeta><epsilon><iota> <mu><epsilon>
              <tau><epsilon><lambda><epsilon><?><alpha>,
              <theta><epsilon><omega><rho><epsilon><?><tau><alpha><iota>
              <?><tau><iota>
              <pi><rho><?><kappa><epsilon><iota><tau><alpha><iota>
              <gamma><iota><alpha> <?><nu>o<mu><alpha>
              <epsilon><nu><?><tau><eta><tau><alpha><sigma>. E<?><nu> <tau>o
              <?><nu>o<mu><alpha> <tau><eta><sigma>
              <delta>o<kappa><iota><mu><?><sigma>
              <alpha><rho><chi><?><zeta><epsilon><iota> <mu><epsilon> @,
              <theta><epsilon><omega><rho><epsilon><?><tau><alpha><iota>
              <?><tau><iota>
              <pi><rho><?><kappa><epsilon><iota><tau><alpha><iota>
              <gamma><iota><alpha> <?><nu>o<mu><alpha>
              <kappa><alpha><tau><eta><gamma>o<rho><?><alpha><sigma>.

       --run-without-debug
              M<eta><nu>
              <epsilon><kappa><tau><epsilon><lambda><epsilon><?><tau><epsilon>
              <mu><epsilon> <tau><eta> <sigma><eta><mu><alpha><?><alpha> DEBUG
              <rho><upsilon><theta><mu><iota><sigma><mu><?><nu><eta>

       --shutdown-running-calibre, -s
              <Pi><rho>o<kappa><alpha><lambda><epsilon><?> <tau>o<nu>
              <tau><epsilon><rho><mu><alpha><tau><iota><sigma><mu><?>
              <mu><iota><alpha><sigma>
              <tau><rho><?><chi>o<upsilon><sigma><alpha><sigma>
              <pi><alpha><rho>o<upsilon><sigma><?><alpha><sigma> calibre,
              <epsilon><?><nu> <upsilon><pi><?><rho><chi><epsilon><iota>,.
              <Sigma><eta><mu><epsilon><iota><?><sigma><tau><epsilon>
              <?><tau><iota> <alpha><nu>
              <upsilon><pi><?><rho><chi>o<upsilon><nu>
              <epsilon><kappa><tau><epsilon><lambda>o<?><mu><epsilon><nu><epsilon><sigma>
              <epsilon><rho><gamma><alpha><sigma><?><epsilon><sigma>,
              <alpha><upsilon><tau><?><sigma> <theta><alpha>
              <delta><iota><alpha><kappa>o<pi>o<?><nu>
              <sigma><iota><omega><pi><eta><rho><?>, o<pi><?><tau><epsilon>
              <chi><rho><eta><sigma><iota><mu>o<pi>o<iota><?><sigma><tau><epsilon>
              <tau>o <mu><epsilon> <pi><rho>o<sigma>o<chi><?>.

       --subset-font, -f
              Y<pi>o<sigma><?><nu>o<lambda>o <tau><eta><sigma>
              <kappa><alpha><theta>o<rho><iota><sigma><mu><?><nu><eta><sigma>
              <gamma><rho><alpha><mu><mu><alpha><tau>o<sigma><epsilon><iota><rho><?><sigma>.
              X<rho><eta><sigma><iota><mu>o<pi>o<iota><?><sigma><tau><epsilon>
              -- <mu><epsilon><tau><?> <alpha><pi><?> <alpha><upsilon><tau><?>
              <tau><eta><nu> <epsilon><pi><iota><lambda>o<gamma><?>
              <gamma><iota><alpha> <nu><alpha>
              <pi><epsilon><rho><?><sigma><epsilon><tau><epsilon>
              <tau><eta><nu> <epsilon><pi><iota><lambda>o<gamma><?>
              <sigma><tau>o <pi><rho><?><gamma><rho><alpha><mu><mu><alpha>
              <upsilon><pi>o<sigma><upsilon><nu><?><lambda>o<upsilon>
              <gamma><rho><alpha><mu><mu><alpha><tau>o<sigma><epsilon><iota><rho><?><sigma>.

       --test-build
              <Delta>o<kappa><iota><mu><?>
              <delta><upsilon><alpha><delta><iota><kappa><?><nu>
              <epsilon><nu>o<tau><?><tau><omega><nu> <sigma><tau><eta><nu>
              <kappa><alpha><tau><alpha><sigma><kappa><epsilon><upsilon><?>

       --un-kepubify
              M<epsilon><tau><alpha><tau><rho><?><psi><tau><epsilon> <tau>o
              <kappa><alpha><theta>o<rho><iota><sigma><mu><?><nu>o
              <alpha><rho><chi><epsilon><?>o KEPUB <sigma><epsilon> EPUB
              <chi><omega><rho><?><sigma> <nu><alpha>
              <kappa><?><nu><epsilon><tau><epsilon> <pi><lambda><?><rho><eta>
              <mu><epsilon><tau><alpha><tau><rho>o<pi><?>. A<upsilon><tau><?>
              <epsilon><?><nu><alpha><iota> <pi>o<upsilon>
              <kappa><?><nu><epsilon><iota> o o<delta><eta><gamma><?><sigma>
              Kobo <kappa><alpha><tau><?> <tau><eta><nu>
              <epsilon><iota><sigma><alpha><gamma><omega><gamma><?>
              <alpha><rho><chi><epsilon><?><omega><nu> <alpha><pi><?>
              <tau><eta> <sigma><upsilon><sigma><kappa><epsilon><upsilon><?>.

       --version
              <delta><epsilon><?><xi><epsilon> <tau>o<nu>
              <alpha><rho><iota><theta><mu><?>
              <?><kappa><delta>o<sigma><eta><sigma> <tau>o<upsilon>
              <pi><rho>o<gamma><rho><?><mu><mu><alpha><tau>o<sigma>
              <kappa><alpha><iota> <kappa><lambda><epsilon><?><sigma><epsilon>

       --viewer, -w
              Run the E-book viewer in debug mode. As with -g use -- to pass
              command line arguments.

Author
       Kovid Goyal

Copyright
       Kovid Goyal

9.14.0       A<upsilon><gamma>o<?><sigma><tau>o<upsilon> 28, 2026
                                                              CALIBRE-DEBUG(1)