first, "shrike" (AKA RedHat Linux 9) is hopelessly out of date. Take that into account as you complete your training.
In your example, there are 2 distinct commands:
2>&1 is a "redirection"---read more here:
(and in many other sites found by Google)
"tee" is also used for redirection, but sends the output to 2 different place. "man tee" for details.