How can I use a command's output as an input?

Suppose you want to get lines from the middle of a file. More specifically, suppose you want to get lines 3-5 from one of our data files. You can start by using head to get the first 5 lines and redirect that to a file, and then use tail to select the last 3:

head -n 5 seasonal/winter.csv > top.csv
tail -n 3 top.csv

A quick check confirms that this is lines 3-5 of our original file, because it is the last 3 lines of the first 5.