Aspell: how to ignore words permanently

I have a tex file that I update regularly and want to check for spelling every time. I would like aspell to remember the mispelled words that I chose to ignore and automatically ignore them in every subsequent spellcheck. The way I do it so far is the following: - Check the file using aspell -t -c file.tex. After that, I know that whatever is left there that is misspelled can be ignored for the next time. - Do cat file.tex | aspell list -t | sort | uniq > dictionary.txt and then add personal_ws-1.1 en 162 as the first line of dictionary.txt. This will be a personal dictionary of things that can be ignored in every subsequent spell check. - Next time check the file with aspell --home-dir=. --personal=dictionary.txt -t -c file.tex This works, but the problem is that I need to do this procedure every time I want to update the words that I want to ignore permanently. Is there a way to make aspell put the interactively ignored words in that file, automaticaally during the spell check? Or any other efficient way of achieving what I'm doing above?