title: Handling input confirmations in Linux shell scripting
body: <p>I'm writing a Linux Shell Script to automate a few things I'm doing on Ubuntu 11.04.</p>
  
  <p>Basically, I'm writing a shell script to install NGINX, MySQL, and PHP, and then configure everything. I know how to do everything via the command-line.</p>
  
  <p>However, I don't know how I'm going to handle the parts where the process asks for user input. For example, certain things I install with apt-get ask you for a confirmation i.e. (Y)es or (N)o.</p>
  
  <p>How exactly would I handle auto-confirmation in the shell script i.e. to automatically confirm Yes or No when asked?</p>