2015-04-21 06:43:32 +0200 | commented answer | Setting up Sage on my mac, pdflatex not working PATH is an environment variable listing the directories searched by default when running various commands. when you type echo $path in a shell (terminal), you will see that list. You can add a directory (let's say, /usr/texbin) to it like this: export PATH = $PATH:/usr/texbin |