Update I found a Unix FAQ which says that the reason $0 works is that some ps commands look at ARGV in the processes address space, while other ps commands actually check a processes u-area and this cannot be directly modified save for a system call or perhaps the setproctitle() utility (which explains why the earlier post said process title, not process name)

However, both /usr/ucb/ps and /usr/bin/pc both fail to give me the new $0under Solaris... so I think I will try GNU ps... wish me luck