I was in a Linux OS environment using some kind of slack-ware or virtual machine software practicing commands in terminal for a class today. I was using the command aspell to spell-check a file. Afterwards I got into terminal on my own mac-book pro and tried finding a similar command but couldn't. What is the syntax or command I would need to type to spell-check a file or is there one? I tried doing a whereis ?ispell command and whereis spell but didn't find anything.