terminal-stuff

cd            #Takes you to home directory
cd -          #Takes you to your previous directory
cd ../../     #Takes you back two directorys
cd ~/         #Takes you to the home directory
cd ~          #Takes you to the home directory
pwd           #Path to working directory (tells you where you are)
ls -l         #list directory contents
ls -a         #list directory contents and hidden files
lsof -wni tcp:3000 #get PID for port 3000
time curl https://secure.opinionlab.com/includes/universal/images/foot-logo.png > /dev/null
ab -n 20 -c 5 https://cdn.opinionlab.com/includes/universal/images/foot-logo.png
curl -I -H 'If-None-Match: 0c0c1a8ee6e3251ab320301a847e37c8' https://olab-assets.s3.amazonaws.com/includes/universal/javascripts/compiled/cc-engine-5.1.min.js

ruby emcee-sync.rb && echo 'foo'
ruby emcee-sync.rb ; echo 'foo'

echo $? //exit code of last processed job in shell