emacs_setup.sh

#!/bin/sh

#writing content to a file
write_commands ()
{
  file=$1
  #adding MELPA repository
  echo "(require 'package)"   >> $file
  echo "(add-to-list 'package-archives '(\"melpa\" . \"http://melpa.org/packages/\"))" >> $file
  echo "(package-initialize)" >> $file

  #installing and loading zenburn color theme
  themePck="zenburn-theme"
  themeName=zenburn
  echo "(or (package-installed-p '$themePck) (package-install '$themePck))" >> $file
  echo "(load-theme '$themeName t)" >> $file
}

#installing emacs 2.4
if [ -f /usr/bin/emacs24 ]; then
  echo "emacs 2.4 is already installed"
else  
  sudo apt-get update
  sudo apt-get install emacs24
fi

#creating deafult initialization file
DEFAULT=/usr/local/share/emacs/site-lisp/default.el
if [ -f $DEFAULT ]; then 
  echo "initialization file default.el for emacs already exists"
else
  sudo touch $DEFAULT
  write_commands $DEFAULT
fi