$ sudo apt-get update
$ sudo apt-get install ruby-dataobjects-sqlite3 

ruby-dataobjects-sqlite3 is installed in your system.

Make ensure the ruby-dataobjects-sqlite3 package were installed using the commands given below,

$ sudo dpkg-query -l | grep ruby-dataobjects-sqlite3 *

You will get with ruby-dataobjects-sqlite3 package name, version, architecture and description in a table

ruby-dataobjects-sqlite3 package basic information: