primSystem: get system()-like functionality from machdep.c:shellEsc().
primSystem: get system()-like functionality from machdep.c:shellEsc().
FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs