jim@hwcs.UUCP (Jim Crammond) (08/19/84)
I have a file called 'todo' which begins with the line #!/usr/ucb/vi +2vi Thus if I execute it, it vi's itself. The +2 is so it starts on the second line, the 'vi' forces it into visual mode as it goes into open mode otherwise, (a feature I presume). Perhaps more useful is the way I've heard it is used in MU-Prolog: When the MU-Prolog interpreter saves the program currently in memory it dumps various structures into a file preceded by a #!/usr/..../muprolog Thus the saved file can be executed directly, it automatically calls up the interpreter to read itself in and execute. -Jim Crammond. ..!ukc!edcaad!hwcs!jim