> SysVr2.x for VAX and 3b2 also defined 'unix'. I sort of remember some > variant of 7th Edition doing so as well, but I've not yet setup and > booted the virtual PDP-11 with V7, so can't (yet) confirm that memory! ;-) I tried it on V6 and V7 (in the PDP emulator). V6 does not define 'unix', but V7 does. -- Lennart