Does anyone know if there is a limit to the legth of the HOUDNI_PATH environment variable? Likely this is os specific, but has anyone experienced truncated HOUDINI_PATHs? thanks.
It is a limit of whatever is building your environment.
Some places put the environment in the shell, other places build it in perl or python and launch from that. It's pretty much related to systems outside Houdini though in any case.