henry@utzoo.UUCP (Henry Spencer) (06/21/83)
Tee(1) has been modified so that it refuses to cooperate if both input and output are tty's, unless the -t flag is given. This is a concession to the presence of both "ted" and "tee", which has lead to disastrous typos on several occasions. I also took the opportunity to clean up tee's innards drastically.