The documentation I have been able to find on the usage of pbsdsh says that each instance of an executable spawned by pbsdsh will be given a unique environment variable PBS_VNODENUM, and that each instance can get its "identity" from that variable. I have tested pbsdsh on two different systems, and it looks like PBS_VNODENUM is not defined at all. Am I dealing with outdated information or what? Is anything available to replace PBS_VNODENUM?
