How to use in drush in ubuntu

1- First set path in bashrc file
      #PATH Variables
      PATH=$PATH:/home/amit/drush(Drush path)
      export PATH

$ gedit .bashrc
$ source .bashrc
now we use drush in ubuntu
$drush dl drupal

How to install LAMP in ubuntu

Type the following commands in terminal of ubuntu:-

#sudo apt-get install apache2
#sudo apt-get install php5 libapache2-mod-php5
#sudo apt-get install mysql-server mysql-server
#sudo apt-get install phpmyadmin
#sudo apt-get install libapache2-mod-auth-mysql php5-mysql
#sudo /etc/init.d/apache2 restart

set password according to your choose
and check on broswer
http//:localhost
http//:localhost/phpmyadmin