Is there some existing offline tool that can be pointed to a file with English text and will complain about missing "a" "the" within the text?

Preferably it would be

  • command line tool (though GUI is also OK)
  • working on Linux
  • open source project
  • active project

Yes, I am aware about G******** (one that keeps appearing in Youtube ads) but I prefer to avoid it for multiple reasons (for private text I prefer to not leak it outside, unable to automate it, requires to be online to work, using it supports ads)

  • What research have you done? What tools have you evaluated and rejected? Nov 30, 2021 at 18:48

1 Answer 1


Why don't you just install LibreOffice and use the grammar check from there?

This will allow you to parse .doc and many others.

If you strictly want to use the command line go for:

...and Google the rest...

  • I though that aspell is for spellchecking? You link also mentions only typos and there is no mention of grammar checks. aspell -? mentions only spellchecking. Dec 1, 2021 at 13:36

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