The Slack desktop app is the easiest way to use Slack on Linux. To get started, take a look at the steps we’ve outlined below.

Note: Slack for Linux is in beta. We’re still busy adding features and making adjustments to the app. 🐝

Step 1: Download the Slack app

At the moment we support Ubuntu, Fedora, and RHEL.UbuntuFedoraRHEL

Download the app from the Slack downloads page for Ubuntu

  1. Visit slack.com/downloads.
  2.  Click Download .deb (64 bit) or Download .rpm (64-bit).
  3. Locate the file in your Downloads folder (the downloaded file name will begin with slack-desktop). 
  4. Double click the file to view Slack in the Ubuntu Software Center.
  5. Click Install. You may need to enter the password you use to log in to Ubuntu.
  6. To run the app, search your computer for Slack, then double click the Slack icon.

Install Slack from the command line with snap

sudo snap install slack –classic

Tip: We don’t recommend having both the .deb and .snap package installed at the same time.

Step 2: Sign into your workspace

Once you’ve installed the Slack app, you can sign in to a workspace you’re already a member of, join a workspace, or create your own.

Update Slack

Follow the steps below to update the Slack app for your version of Linux.UbuntuFedora

Update Slack by entering these commands from the command line:
sudo apt-get update
sudo apt-get upgrade slack-desktop

https://slack.com/help/articles/212924728-Download-Slack-for-Linux–beta-