Signal is a free, cross-platform, opensource communication app that’s simple, fast and secure… Its main goal is protecting user’s privacy… so if you’re looking for a highly secure, privacy-first communication client that works on desktop and mobile devices, Signal maybe something you want…
Besides just chat and instant messages, users can use Signal to make crystal-clear voice and video calls across town or long distances… Signal messages and calls are always end-to-end encrypted and engineered to keep users communication safe. you can use either curl / wget
sudo apt install curl
curl -s https://updates.signal.org/desktop/apt/keys.asc | sudo apt-key add -
echo "deb [arch=amd64] https://updates.signal.org/desktop/apt xenial main" | sudo tee -a /etc/apt/sources.list.d/signal-xenial.list
sudo apt update && sudo apt install signal-desktop
After running the commands above, Signal should be installed and ready to use…. although the package repository looks like it’s for Xenial, it should also work on Ubuntu 18.04, 20.04
Install Signal via Snap
Signal can also be installed via Ubuntu snap package management… This might be the quickest way to install Signal.
Snap is a unniversal package manager that enables users to quickly install and maintain packages on Ubuntu systems… Ubuntu 16.04 and previous version may not have Snap installed by default… so to install, run the commands below
sudo apt install snapd
sudo snap install signal-desktop
Reference:
https://signal.org/download/linux/
