Read this blog post: Spell Check Your LaTeX Writings Using GNU Aspell

This tool simplies the usage of GNU aspell (you must have it installed) for spell-checking of LaTeX files.

First, you install it:

$ gem install texsc

Then, you just run it like this for your LaTeX files:

$ texsc article.tex

You may ignore certain tags or environments using --ignore option

$ texsc --ignore=citet,citep --ignore=newminted article.tex

You can specify the method of ignoring, as aspell suggests (by default it's 'p'):

$ texsc --ignore=newminted:opp article.tex

You may also use your own additional dictionary, via --pws option. The file must contain one word per line: they will be ignored during spell checking. Don't forget that the first line of the file must contain this:

personal_ws-1.1 en 1 utf-8

How to contribute

Read these guidelines. Make sure your build is green before you contribute your pull request. You will need to have Ruby 2.3+ and Bundler installed. Then:

$ bundle update
$ bundle exec rake

If it's clean and you don't see any error messages, submit your pull request.