Install steam locomotive sl using apt

sl or steam locomotive is a commandline application that displays steam locomotive "train" animations aimed to correct users who accidentally enter sl instead of ls.  initials sl stands for Steam Locomotive

How to install ls or steam locomotive

Assuming you've root privileges and installed apt package manager on your system
Type

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install sl

To test installation type
sl
If installation was successful You'll see an ASCII image of a train right in your terminal after few seconds it will stop