Handling input confirmations in Linux shell scripting

Question

I\'m writing a Linux Shell Script to automate a few things I\'m doing on Ubuntu 11.04.

Basically, I\'m writing a shell script to install NGINX, MySQL, and PHP, and then

Answer 1

For Apt, the correct answer is to "preseed" your debconf database with the correct parameters. If Debconf finds the answer from its database, it won't ask. See also http://www.debian-administration.org/articles/394