A bit of fun.....

Although the games under MobaXTerm can be entertaining wanted something with a bit fun at a Linux level. Some interesting commands are "sl" - Steam Locomotive, to annoy admin people who can't type ls, "cowsay" (what can I say) and "figlet".  

More here :

https://www.tecmint.com/20-funny-commands-of-linux-or-linux-is-fun-in-terminal/

$yum install sl

$yum install cowsay

$yum install figlet

Let me know if you have used any others or have your own silly commands.