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Batch mode without exiting.

Question:

> >       How do you execute a particular go script from the
> >       unix command line? Not within the ferret command
> >       line, but the unix prompt.
>
> That is, he would like to hand FERRET a particular go script
> to execute, possibly by using a shell command such as
>
> 	% ferret ferret_script.jnl
>
> To be precise, he wants to
>
> >	fire off my ferret go script from my gui. I don't want the
> >	user to have to worry about knowing which one of the many
> >	go scripts to execute.
>
> I have tried loading commands into a file, and then executing
> FERRET using redirection:
>
>         % ferret < ferret_commands
>
> When I do this, FERRET executes all the commands in the file,
> generates any displays, and then immediately terminates, and
> all displays go bye-bye.  Is there a way to get FERRET to
> leave the displays up and wait for additional commands?
>
> Are there any other ways to run FERRET with a specific set
> of commands?

Solution:

! just once do this (create the named pipe in your filesystem)
	mknod ferret_commands p

! to start ferret
	cat >> ferret_commands &
	ferret < ferret_commands&

! to execute a script
	cat my_script.jnl >> ferret_commands