Can I install SQL server in linux? how do I install it [closed]

If you can.

In Ubuntú for example:

• Import PGP key:

  curl https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add -

• Register the server in the repository

  sudo add-apt-repository "$(curl https://packages.microsoft.com/config/ubuntu/16.04/mssql-server.list)"

• Update apt and install the server:

  sudo apt-get update

  sudo apt-get install -y mssql-server

• Set up your server:

  sudo /opt/mssql/bin/mssql-conf setup

• Verify that the service is running:

  systemctl status mssql-server

Enjoy your SQL server.

You can find the documentation here