shell-pop-el 
shell-pop.el helps you to use shell easily on Emacs. Only one key action to work.
Installation
You can install shell-pop.el from MELPA and Marmalade
with package.el.
M-x package-install shell-pop
Manual Install
Make sure to place shell-pop.el somewhere in the load-path and add the following lines
to your init file(~/.emacs.d/init.el, ~/.emacs etc).
(add-to-list 'load-path "somewhere")
(require 'shell-pop)
Customization
Use M-x customize-variable RET shell-pop-shell-type RET to customize the shell to use. Four pre-set options are: shell, terminal, ansi-term, and eshell. You can also set your custom shell if you use other configuration.
For terminal and ansi-term options, you can set the underlying shell by customizing shell-pop-term-shell. By default, shell-file-name is used, but you can also use /bin/tcsh, /bin/zsh or others.
Use M-x customize-group RET shell-pop RET to set further options such as hotkey, window height and position.
You can get a full frame layout by setting full to shell-pop-window-position.
After saving the customized values, your .emacs file will be like as follows.
(custom-set-variables
;; custom-set-variables was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won't work right.
'(shell-pop-default-directory "/Users/kyagi/git")
'(shell-pop-shell-type (quote ("ansi-term" "*ansi-term*" (lambda nil (ansi-term shell-pop-term-shell)))))
'(shell-pop-term-shell "/bin/bash")
'(shell-pop-universal-key "C-t")
'(shell-pop-window-size 30)
'(shell-pop-full-span t)
'(shell-pop-window-position "bottom"))
shell-pop-window-position(Default: "bottom")
Position of popup window. You can choose "bottom", "top", "right", "left" and "full".
Use entire frame when this value is "full".
shell-pop-window-size(Default: 30)
Percentage for shell-buffer window size.
shell-pop-full-span
This option allows you to generate the shell window with the same width as the current Emacs frame. It is beneficial when you are always using multiple windows on Emacs. In detail, see https://github.com/kyagi/shell-pop-el/pull/21#issuecomment-48876673
shell-pop-in-hook
This hook runs before shell buffer pop-up.
shell-pop-in-after-hook
This hook runs after shell buffer pop-up.
shell-pop-out-hook
This hook runs before shell buffer pop-out.
Usage
Just hit the hot key you customized for shell-pop-universal-key.
For example, C-t for the above case.
You can have multiple shell buffers if you run shell-pop with universal-arguments.
For example, C-u 2 C-t. You can increase the number(2, 3, 4, ...) as much as you want for different shell buffers.
Screenshot
