Command-line arguments (Server)

You just restored my sitnay ! I just converted from iTerm to iTerm2, and found that some of my nice alias commands didn't work. I checked I was in the same shell, logged in with the same switches. One specific issue I stripped down to find that a simple ps -u' worked in iTerm but bombed in iTerm2 (and in Terminal). I was completely mystified, because surely they are both just dumb terminals running a simple unix command ? But I just checked and indeed iTerm login has COMMAND_MODE=legacy and iterm2 has COMMAND_MODE=unix2003 .