I often have the experience of being like, "Surely I can't just do this entire task with a bunch of greps in a timely manner, it's going to take forever, right?

I often have the experience of being like, "Surely I can't just do this entire task with a bunch of greps in a timely manner, it's going to take forever, right?" and then boom, the script takes like a minute to finish sorting through bazillions of lines.