how can i remove younity from my mac and ipad
There is no uninstaller for younity. Like most Mac applications, you uninstall it by simply deleting the application. However, if you want to be thorough, you should delete both the following folders:
One more thing to delete. We also install a Login Item, which allows younity to run whenever you Mac starts. It's not necessary to delete this after you delete the app, since OS X will figure out that it points to a deleted application, but if you want to be extra thorough, you can delete that as well. To do so, open System Preferences, then navigate to Users & Groups, click the Login Items tab, select the younity item, and click the minus sign '-' to delete it.
On an iOS device you simply hold your finger on the application until it starts to shake and a small "x" appears in the corner of the icon, then tap on the 'x' and the program will be deleted.
After installing on my iMac, it will only boot to a blue screen. I need to remove that login item from the command line, since I can only get control of the computer in single-user mode. Tell me how to do that asap, please; this software has left my media server useless and inaccessible.