With rabbits, a common myth is that if you touch a baby rabbit the mother will no longer care for it. 9 times out of 10, the mother will return to care for the babies after they have been handled.
QNX is not a Linux distribution, normal or otherwise. QNX is POSIX compliant. That means that much of the programming interface and many of the utilities are the same. The underlying OS is very different in structure. There is little compatibility for drivers. With Linux the operating system functions as a very large monolithic piece of code.
Some Basic UNIX Concepts. Every user has a unique username. When they logon to the system, they are placed in a HOME directory, which is a portion of the disk space reserved just for them. When you log onto a UNIX system, your main interface to the system is called the UNIX SHELL. This is the program that presents you with the dollar sign ($) prompt.