Opensource.com - https://opensource.com/article/18/2/aspell
Proper spelling doesn’t seem to be very important to many people these days. There are, however, those of us for whom it is. Yes, I am one of those people.
While I’m not a spelling cop, misspelled words stick out when I encounter them. They hurt my eyes. They hurt my brain. Any good text editor or word processor packs a spelling checker. If you’re working in plain text, you can go another route to check spelling: at the command line with a nifty utility called GNU Aspell (which I’ll be calling Aspell from here on in).