To install UDO onto an Atari or onto a computer with a
TOS-compatible operating system (e.g. MagicMacX, MagicMac, MagicPC,
GEMulator, STEmulator), just copy all files to a directory that should
The GEM version should be the application for files with the suffix *.u* so you shall do the neccessary changes in your desktop (Gemini, Thing, Ease, Magxdesk, ...).
If you prefer the TTP version and you are using a command line shell (e.g. Mupfel by Stefan Eissing) copy or move udo.ttp to one of the directories that is part of $PATH (e.g. \usr\bin).