$ sudo apt-get update
$ sudo apt-get install ncbi-rrna-data 

ncbi-rrna-data is installed in your system.

Make ensure the ncbi-rrna-data package were installed using the commands given below,

$ sudo dpkg-query -l | grep ncbi-rrna-data *

You will get with ncbi-rrna-data package name, version, architecture and description in a table

ncbi-rrna-data package basic information: