Emacs init files and information
Key bindings are expressed as follows:
C-a is Ctrl + a
M-a is Meta + a
Meta is usually Alt or Opt on PC or Mac keyboards.
M-x shell Open the shell
C-x C-b: List Buffers
C-x 0: Change Window
C-x 1: Change Window
C-x 2: Split Window
C-x 3: Split Window
Source :