mike%rice@sri-unix.UUCP (03/10/84)
From: Mike.Caplinger <mike@rice> The #! feature was added to the Berkeley Unix system in 4.1; it was not present in 4.0. The major motivation, I believe, was to allow Pascal interpreter files to be execed directly without using the disgusting hack of putting an executable interpreter front end on them. In fact, this is a nice general solution to the problem of running files which are interpreted by some other program. Cshell scripts are just a special case of that.