vim advanced

1. How to move the windows

CTRL-W r    *CTRL-W_r* *CTRL-W_CTRL-R* *E443*
CTRL-W CTRL-R Rotate windows downwards/rightwards.  The first window becomes
  the second one, the second one becomes the third one, etc.
  The last window becomes the first window.  The cursor remains
  in the same window.
  This only works within the row or column of windows that the
  current window is in.


      *CTRL-W_R*
CTRL-W R Rotate windows upwards/leftwards.  The second window becomes
  the first one, the third one becomes the second one, etc.  The
  first window becomes the last window.  The cursor remains in
  the same window.
  This only works within the row or column of windows that the
  current window is in.


CTRL-W x     *CTRL-W_x* *CTRL-W_CTRL-X*
CTRL-W CTRL-X Without count: Exchange current window with next one.  If there
  is no next window, exchange with previous window.
  With count: Exchange current window with Nth window (first
  window is 1).  The cursor is put in the other window.
  When vertical and horizontal window splits are mixed, the
  exchange is only done in the row or column of windows that the
  current window is in.

The following commands can be used to change the window layout.  For example,
when there are two vertically split windows, CTRL-W K will change that in
horizontally split windows.  CTRL-W H does it the other way around.


      *CTRL-W_K*
CTRL-W K Move the current window to be at the very top, using the full
  width of the screen.  This works like closing the current
  window and then creating another one with ":topleft split",
  except that the current window contents is used for the new
  window.


      *CTRL-W_J*
CTRL-W J Move the current window to be at the very bottom, using the
  full width of the screen.  This works like closing the current
  window and then creating another one with ":botright split",
  except that the current window contents is used for the new
  window.


      *CTRL-W_H*
CTRL-W H Move the current window to be at the far left, using the
  full height of the screen.  This works like closing the
  current window and then creating another one with
  ":vert topleft split", except that the current window contents
  is used for the new window.
  {not available when compiled without the +vertsplit feature}


      *CTRL-W_L*
CTRL-W L Move the current window to be at the far right, using the full
  height of the screen.  This works like closing the
  current window and then creating another one with
  ":vert botright split", except that the current window
  contents is used for the new window.
  {not available when compiled without the +vertsplit feature}

Some about tabs

Move between tabs:
using "gt"!
Create new tabs:
tabedit

Let's say you're editing six or seven files in Vim and realize that you need to replace a variable name with a new one. Using the :tabdo command, you can run a search and replace through all of the tabs at once rather than changing each file individually. For instance, if you want to replace foo with bar, you'd run this:

:tabdo %s/foo/bar/g

That will run through each open tab and run the search and replace command (%s/foo/bar/g) in each one.

Tabs can be extremely useful, and it only takes a short while to become proficient with them. For more on working with tabs in Vim, run :help tab-page-intro within Vim.