Download youtube audio

dnf install youtube-dl

youtube-dl --extract-audio --audio-format mp3 --audio-quality 0  

Fedora 23 rpmfusion gpg check

Navigate to rpmfusion gpg listing

http://rpmfusion.org/keys?action=AttachFile&do=view&target=RPM-GPG-KEY-rpmfusion-free-fedora-23

Download the appropriate gpg files (Fedora 23 in this example)


rpm --import RPM-GPG-KEY-rpmfusion-free-fedora-23

rpm --import RPM-GPG-KEY-rpmfusion-nonfree-fedora-23

or use dnf install "whatever" --nogpgcheck   <--- bad="" div="">

Add the date to Gnome 3 menubar (gnome-tweak-tool or dconf-editor)

New Way

Install gnome-tweak-tool

dnf install gnome-tweak-tool

In the Top Bar section, enable show date, show seconds. Restart gnome (logout, login).


Old Way

Install dconf-editor
In Fedora 23 its using DNF,

dnf install dconf-editor

navigate to org.gnome.desktop.interface

Enable:

clock-show-date
clock-show-seconds
clock-format