I had to look this up, because I was drawing a blank.
I wrote a command line program that was expecting two files… input and output. And I wanted the output to print on the screen instead of a file.
./ditto.jl customer-fixed.ebc /dev/stdout|more
So the screen… /dev/stdout, is a file in Linux.
Also it was kind of hard to create a query that returned what I wanted.
It kept returning opposite results of what I wanted. Pipe screen output to a file