$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Calibre on Elementary OS Gnu/Linux

June 12, 2018 | By the+gnu+linux+evangelist.

Installing

  1. 2. Downloading

    How to Download Calibre Installer for Elementary OS

    Calibre .sh Installer
  2. 3. Installing

    Installing Latest Calibre for Elementary OS
    First, Set Permissions with:

    chmod +x ~/Downloads/linux-installer.sh

    And then Run the Calibre Installation Script:

    sudo ~/Downloads/linux-installer.sh

    If Got “User is Not in Sudoers file” then see: How to Enable sudo

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