What are the three principal options of the wc program, and what does each one do? What is it about wc that makes it such a useful tool? When you use wc, what is the defi nition of a “line”? When you...

What are the three principal options of the wc program, and what does each one do? What is it about wc that makes it such a useful tool? When you use wc, what is the defi nition of a “line”?

When you use tabs with Unix, what are the default tab positions?