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stream, such as a rsh or vi pipeline. The error message is: stty: TIOCGETD: Operation not supported It's immediately obvious to the knowledgable hacker type, but not exactly comforting to the user who's not native to unix. It's especially confusing if there's a stty command in their .cshrc and it's showing up on rsh output. (Fixes PR #bin/573) Submitted by: peter@haywire.dialix.com (Peter Wemm)