Mailcatcher installation script for Ubuntu 14.04

setup_mailcatcher.sh

#!/bin/bash

# Install dependencies
apt-get install libsqlite3-dev ruby1.9.1-dev
# Install the gem
gem install mailcatcher

# Make it start on boot
echo "@reboot $(which mailcatcher) --ip=0.0.0.0" >> /etc/crontab
update-rc.d cron defaults

# Make php use it to send mail
sudo echo "sendmail_path = /usr/bin/env $(which catchmail)" >> /etc/php5/mods-available/mailcatcher.ini
# Notify php mod manager (5.5+)
sudo php5enmod mailcatcher

# Start it now
/usr/bin/env $(which mailcatcher) --ip=0.0.0.0

Appending the sendmail_path to the php.ini is not a good idea at all, you must use sed for replacing it.