In Vim, what is the best way to select, delete, or comment out large portions of multi-screen text?

Question

Selecting a large amount of text that extends over many screens in an IDE like Eclipse is fairly easy since you can use the mouse, but what is the best way to e.g. select and de

Answer 1

You should be aware of the normal mode command [count]CTRL-D. It optionally changes the 'scroll' option from 10 to [count], and then scrolls down that many lines. Pressing CTRL-D again will scroll down that same lines again.

So try entering

V     "visual line selection mode
30    "optionally set scroll value to 30
CTRL-D  "jump down a screen, repeated as necessary
y      " yank your selection

CTRL-U works the same way but scrolls up.