List directories of a directory, sorted by human readable size
du -hs ./* | sort -hr
Show hidden files in Finder in OS X
defaults write com.apple.finder AppleShowAllFiles TRUE
Ctrl-Alt click finder icon and click Relaunch
Restart Mac OS X Sound Server Coreaudio
sudo killall coreaudiod
Install composer system wide
curl -sS https://getcomposer.org/installer | php sudo mv composer.phar /usr/local/bin/composer