You asked if you could do this so I take it that presently you can't so the answer to the first is no.
Maybe you are just beginning to write apps and more so with that rather bad guess on my part I think you want to find coding forums like CodeProject and dive in. But next time think over your question so it's not one that answered itself.
Well i have x64 Linux (Zorin-OS) on my PC and the Minecraft server running through Hamachi. Can i make some settings, plugins or similar so my server can send text messages to Skype users or people in my Hamachi network? For example I want to start server and he will send message: Minecraft server started, let's play guys!