How-to Install Viber on Linux Mint GNU-Linux

Viber

Syncs your contacts and messages with your mobile device.

Text, photo, sticker and emoticons messages
Group conversations
Call any Viber user for free with HD sound quality
Full sync between your mobile and your Linux
Seamlessly transfer calls between Viber Desktop and the Viber app with one click or tap
No registration, passwords or invitations required
Messages are shown on all devices

Download Viber Installer for Linux Mint:

Here Viber .deb 64bit Package
Open a Shell Terminal emulator window (Press “Enter” to Execute Commands)
Checking/Installing GDebi Package Installer

If Not there (No Output) then:

If Got “User is Not in Sudoers file” then Look: Solution
Installing Viber for Linux Mint
Making a Viber Symlink for Easy Launching from Terminal

Launching from Terminal:
Editing the Viber App Launcher (Amend the Paths)

Change the Exec & Path as:

Ctrl+x to Save & Exit from nano Editor ?