GNU/Linux Lubuntu 20.04 Installing Signal – Step by step Guide
How to Download and Install Signal desktop Messenger in Lubuntu 20.04 Focal LTS GNU/Linux desktop – Step by step Tutorial.
And Signal App for Lubuntu 20.04 is a Cross-Platform Encrypted Messaging Service. Signal Messages can include Files, Voice Notes, Images and Videos.
Moreover, Signal Mobile Apps can also make one-to-one Voice and Video Calls, and the Android version can optionally function as an SMS App.
Finally, Signal uses standard cellular Mobile Numbers as Identifiers, and uses end-to-end Encryption to secure all Communications to other Signal users.
 
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1. Launching Shell EmulatorOpen a Terminal window 
 Ctrl+Alt+t on desktop
 (Press “Enter” to Execute Commands)In case first see: Terminal QuickStart Guide.  
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