[One (M7) Q&A, Help & Troubleshooting] simmo0020:
ubuntu@ubuntu:~$ sudo add-apt-repository ppa:nilarimogard/webupd8

The main Web Upd8 PPA maintained by: http://www.webupd8.org/

To add this PPA, simply paste this in a terminal:

sudo add-apt-repository ppa:nilarimogard/webupd8

Packages in this PPA: audacious, ap-hotspot, awn-applet-radio, awn-applet-wm, calise, cmus, dockbarx, dockbarx-themes-extra, dropbox-share, emerald, exaile, fbmessenger, gnome-subtitles, gnome-window-applets, grsync, grive, gthumb, launchpad-getkeys, mc, mdm (Mint Display Manager), minitunes, minitube, musique, notifyosdconfig, nautilus-columns, powertop, ppa-purge, rosa-media-player, fixed pulseaudio-equalizer, subtitleeditor, syncwall, umplayer, unity-reboot, wimlib, youtube-dl, xfce4-dockbarx-plugin, xournal, yad and others. Almost all packages are updated to their latest version.

For other (specialized) PPAs we maintain, see: https://launchpad.net/~webupd8team

More info: https://launchpad.net/~nilarimogard/+archive/ubuntu/webupd8

Press [ENTER] to continue or ctrl-c to cancel adding it

gpg: keyring `/tmp/tmpbccfyha4/secring.gpg' created

gpg: keyring `/tmp/tmpbccfyha4/pubring.gpg' created

gpg: requesting key 4C9D234C from hkp server keyserver.ubuntu.com

gpg: /tmp/tmpbccfyha4/trustdb.gpg: trustdb created

gpg: key 4C9D234C: public key "Launchpad webupd8" imported

gpg: Total number processed: 1

gpg: imported: 1 (RSA: 1)

OK

ubuntu@ubuntu:~$ sudo apt-get update

Ign cdrom://Ubuntu 14.04.1 LTS _Trusty Tahr_ - Release i386 (20140722.2) trusty InRelease

Ign cdrom://Ubuntu 14.04.1 LTS _Trusty Tahr_ - Release i386 (20140722.2) trusty/main Translation-en_US

Ign cdrom://Ubuntu 14.04.1 LTS _Trusty Tahr_ - Release i386 (20140722.2) trusty/main Translation-en

Ign cdrom://Ubuntu 14.04.1 LTS _Trusty Tahr_ - Release i386 (20140722.2) trusty/restricted Translation-en_US

Ign cdrom://Ubuntu 14.04.1 LTS _Trusty Tahr_ - Release i386 (20140722.2) trusty/restricted Translation-en

Ign http://ppa.launchpad.net trusty InRelease

Get:1 http://ppa.launchpad.net trusty Release.gpg [316 B]

Get:2 http://ppa.launchpad.net trusty Release [14.0 kB]

Ign http://security.ubuntu.com trusty-security InRelease

Get:3 http://ppa.launchpad.net trusty/main i386 Packages [24.1 kB]

Ign http://archive.ubuntu.com trusty InRelease

Hit http://security.ubuntu.com trusty-security Release.gpg

Ign http://archive.ubuntu.com trusty-updates InRelease

Hit http://security.ubuntu.com trusty-security Release

Hit http://archive.ubuntu.com trusty Release.gpg

Ign http://ppa.launchpad.net trusty/main Translation-en_US

Ign http://ppa.launchpad.net trusty/main Translation-en

Hit http://security.ubuntu.com trusty-security/main i386 Packages

Get:4 http://archive.ubuntu.com trusty-updates Release.gpg [933 B]

Hit http://security.ubuntu.com trusty-security/restricted i386 Packages

Hit http://archive.ubuntu.com trusty Release

Hit http://security.ubuntu.com trusty-security/main Translation-en

Get:5 http://archive.ubuntu.com trusty-updates Release [59.7 kB]

Hit http://security.ubuntu.com trusty-security/restricted Translation-en

Hit http://archive.ubuntu.com trusty/main i386 Packages

Hit http://archive.ubuntu.com trusty/restricted i386 Packages

Hit http://archive.ubuntu.com trusty/main Translation-en

Hit http://archive.ubuntu.com trusty/restricted Translation-en

Get:6 http://archive.ubuntu.com trusty-updates/main i386 Packages [289 kB]

Get:7 http://archive.ubuntu.com trusty-updates/restricted i386 Packages [5,820 B]

Hit http://archive.ubuntu.com trusty-updates/main Translation-en

Hit http://archive.ubuntu.com trusty-updates/restricted Translation-en

Ign http://archive.ubuntu.com trusty/main Translation-en_US

Ign http://archive.ubuntu.com trusty/restricted Translation-en_US

Fetched 394 kB in 3s (107 kB/s)

Reading package lists... Done

ubuntu@ubuntu:~$ sudo apt-get install android-tools-adb android-tools-fastboot

Reading package lists... Done

Building dependency tree

Reading state information... Done

E: Unable to locate package android-tools-adb

E: Unable to locate package android-tools-fastboot

ubuntu@ubuntu:~$