Download + Install of calibre
=============================
https://calibre-ebook.com/download_linux
https://download.calibre-ebook.com/6.html    (old version 6)

root@i5c:/home/gerd-deb# sudo -v && wget --no-check-certificate -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin

Using python executable: /usr/bin/python3
2022-11-29 19:01:01 URL:https://download.calibre-ebook.com/linux-installer.sh [33639/33639] -> "-" [1]
Installing to /opt/calibre
Downloading tarball signature securely...
Will download and install calibre-6.9.0-x86_64.txz 
                                       Downloading calibre-6.9.0-x86_64.txz                                      
100% [=======================================================================================================]
                                                                                                                 Downloaded 139880120 bytes 
Checking downloaded file integrity... 

extract tar-ball: tar -xJf tar-ball.txz

Extracting files to /opt/calibre ...
Extracting application files... 
Creating symlinks...
	Symlinking /opt/calibre/ebook-device to /usr/bin/ebook-device
	Symlinking /opt/calibre/ebook-meta to /usr/bin/ebook-meta
	Symlinking /opt/calibre/ebook-convert to /usr/bin/ebook-convert
	Symlinking /opt/calibre/ebook-polish to /usr/bin/ebook-polish
	Symlinking /opt/calibre/markdown-calibre to /usr/bin/markdown-calibre
	Symlinking /opt/calibre/web2disk to /usr/bin/web2disk
	Symlinking /opt/calibre/calibre-server to /usr/bin/calibre-server
	Symlinking /opt/calibre/lrf2lrs to /usr/bin/lrf2lrs
	Symlinking /opt/calibre/lrs2lrf to /usr/bin/lrs2lrf
	Symlinking /opt/calibre/calibre-debug to /usr/bin/calibre-debug
	Symlinking /opt/calibre/calibredb to /usr/bin/calibredb
	Symlinking /opt/calibre/calibre-parallel to /usr/bin/calibre-parallel
	Symlinking /opt/calibre/calibre-customize to /usr/bin/calibre-customize
	Symlinking /opt/calibre/fetch-ebook-metadata to /usr/bin/fetch-ebook-metadata
	Symlinking /opt/calibre/calibre-smtp to /usr/bin/calibre-smtp
	Symlinking /opt/calibre/calibre to /usr/bin/calibre
	Symlinking /opt/calibre/lrfviewer to /usr/bin/lrfviewer
	Symlinking /opt/calibre/ebook-viewer to /usr/bin/ebook-viewer
	Symlinking /opt/calibre/ebook-edit to /usr/bin/ebook-edit
Setting up command-line completion...
Installing zsh completion to: /usr/share/zsh/vendor-completions/_calibre
Installing bash completion to: /usr/share/bash-completion/completions/
Setting up desktop integration...
Creating un-installer: /usr/bin/calibre-uninstall
Run "calibre" to start calibre 
root@i5c:/home/gerd-deb#