Crystal Programming is an oops programming language and it is very easy to install Crystal Reports.

It is very fast and light. Crystal is a static checking. It is also compiled language. It does not support windows7,window8 but it is supported by window 10. It is mainly working in Ubuntu. Crystal installation via command. The latest version of the crystal is 0.25. It is a web application framework. At the present time, it is working as the centerpiece of crystal web development. crystal is similar to a Ruby programming language. Crystal programming clean syntax for development and  allow better readability,

How to Install Crystal Reports?

Step-1.Apt configuration is compulsory to add your system. it is easy to set up just run via command.

Step-2. open your terminal to locate the path where you want to install it then add this command to your terminal.
   
curl https://dist.crystal-lang.org/apt/setup.sh | sudo bash
Step-3. If you are using manually execute then use the command as a root and write command on terminal.        
apt-key adv --keyserver keys.gnupg.net --recv-keys 09617FD37CC06B54 echo "deb https://dist.crystal-lang.org/apt crystal main" > /etc/apt/sources.list.d/crystal.list apt-get update

Step-4. So you are ready to install the crystal report go to the terminal and write this command.

           $ Sudo apt-get install crystal

$ Sudo apt-get install crystal
Step-5. you also need to install this package build-essential to create a crystal program and write the next command.
            
$ Sudo apt-get install build-essential
Step-6. If you want to upgrade to a new version of crystal then you're writing both commands.

$ Sudo apt-get update $ Sudo apt-get install crystal

Step-7. Let's try some coding part if u want to write a hello world on crystal then see code.    

puts "hello world!" class software query def initialize)(@name: string) end def software puts "hello #{@name}!" end end g = softwarequery.new("world") g.software HTTP server require "HTTP/server" server = HTTP:: Server.new do |context| context.response.content_type = "text/plain" context.response.print "hello software Query" end address = server.bind_tcp 8080 puts "Listing on http://{address}" server. listen