Converting ePub Book to PDF files (Linux / Ubuntu)

In order to Convert ePub format files to pdf all we need is to install the linux package Calibre

For Ubuntu Users and most debian based distros you can install the package as follow :

$ sudo apt update
$ sudo apt install calibre

For Arch Users and most Arch Linux based distros you can install the package as follow :
$ sudo pacman -Syy
$ sudo pacman -S calibre

for others distros check out your package manager intructions and see if calibre is either installed or available

In order to convert the ePub file to PDF do :

$ ebook-convert input_file_name.epub output_file_name.pdf