A quick video on how to record your screen on Ubuntu
Ubuntu's a popular linux distribution, but you may want a reliable program to record your screen
Open up a terminal
Run the following commands:
sudo add-apt-repository ppa:maarten-baert/simplescreenrecorder
sudo apt-get update
sudo apt-get install simplescreenrecorder
Enter your password when prompted
Type simplescreenrecorder to open
Or search for simplescreenrecorder in the search
Set some settings and run
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