Screen

Screen FOO!!!

open a screen.

ctrl+a ?  Will open up the screen commands help.
ctrl+a [  Will allow you to scroll up and down in a screen with arrow keys.

      The following table shows the default key bindings:

      C-a ’       (select)      Prompt for a window name or number to switch to.
      C-a "       (windowlist -b) Present a list of all windows for selection.
      C-a 0       (select 0)
      C-a 9       (select 9)
      C-a -       (select -)    Switch to window number 0 - 9, or to the blank window.
      C-a tab     (focus)       Switch the input focus to the next region.
      C-a C-a     (other)       Toggle  to  the  window  displayed previously.  Note that this binding defaults to the command character typed twice, unless overridden.
      C-a a       (meta)        Send the command character (C-a) to window. See escape command.
      C-a A       (title)       Allow the user to enter a name for the current window.
      C-a b
      C-a C-b     (break)       Send a break to window.
      C-a B       (pow_break)   Reopen the terminal line and send a break.
      C-a c
      C-a C-c     (screen)      Create a new window with a shell and switch to that window.
      C-a C       (clear)       Clear the screen.
      C-a d
      C-a C-d     (detach)      Detach screen from this terminal.
      C-a D D     (pow_detach)  Detach and logout.
      C-a f
      C-a C-f     (flow)        Toggle flow on, off or auto.
      C-a F       (fit)         Resize the window to the current region size.
      C-a C-g     (vbell)       Toggles screen’s visual bell mode.