You use it every day without even realizing it. The Linux servers are responsible for running Facebook, Twitter and even Google. It is also the operating system on which various other major internet sites run.
Also, are you looking forward to learning how to easily query and update data?
A lot of tech enthusiasts trying to develop web and mobile applications are not aware of the most important means of storing and modifying data.
Linux is quite synonymous with the cloud. If you intend to work on cloud-based projects, it is always good to learn Linux, especially the essentials.
While SQL is one of the most famous database query languages that have taken over almost three-fourths of the internet.
Learning SQL is a must for any developer nowadays and with the help of a good eBook, one can understand the basics very well.