SQL Server 2017 can be run on Linux based on Ubuntu 16.04 directly. You can get download details from below link
https://www.microsoft.com/en-in/sql-server/sql-server-downloads
Alternatively it can be used with the Docker Engine 1.8+ on Linux or on Docker for Mac/Windows.
https://docs.microsoft.com/en-us/sql/linux/quickstart-install-connect-docker
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Yuvraj Singh Bais
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