install drush into MAMP setup

drush_MAMP_setup

#go to the folder
cd /Applications/MAMP/bin
#get drush off on the internet (mac has curl not wget, make sure it is the latest drush)
curl -O http://ftp.drupal.org/files/projects/drush-7.x-4.5.tar.gz
#decompress
tar -zxvf drush-7.x-4.5.tar.gz
#delete tar ball
rm drush-7.x-4.5.tar.gz
#user executable
chmod u+x drush/drush
#look at your path
echo $PATH
#confirm bash or zsh
echo $PATH
#if bash, look at what is in .bashrc (might be .profile, .bash_aliases, .bashrc (non interactive), .bash_profile)
cat ~/.profile
# open the file with nano
nano ~/.profile
#Add the following line to the bottom  of the file and save: (no quotes or comment hash)
#"export PATH=${PATH}:/Applications/MAMP/bin/drush"
#reload the saved file
source ~/.profile
#look at the path
echo $PATH
#check to see if it really works
which drush
#hard won knowledge below - only use if your drush install doesn't connect to the database:
#i.e. you get the error -
#Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) [0.11 sec, 4.3 MB]
#this is a problem that happens when the mysql server and php are both on localhost
sudo mkdir /var/mysql
sudo ln -s /Applications/MAMP/tmp/mysql/mysql.sock /var/mysql/mysql.sock