If you are looking to try Scell on Ubuntu, at first, you need to install Java 8. Following steps will help you do it quickly:

$ sudo add-apt-repository ppa:webupd8team/java
$ sudo apt-get update
$ sudo apt-get install oracle-java8-installer


Then, check your Java version:

$ java -version


Your next step is to configure your Java environment:

$ sudo apt-get install oracle-java8-set-default

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