$ sudo apt-get update
$ sudo apt-get install libtomoyotools3 

libtomoyotools3 is installed in your system.

Make ensure the libtomoyotools3 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libtomoyotools3 *

You will get with libtomoyotools3 package name, version, architecture and description in a table

libtomoyotools3 package basic information: