Random Command Line Things
# Read the last line of a error log or any file that is web accessble. replace $url with the url to fetch
curl "$url" 2>/dev/null | tail -n 1
# Save your id_rsa.pub key
cat ~/.ssh/id_rsa.pub | pbcopy
# Get count of files in a directory
cd the_directory_you_want_counted
ls | wc -l