This question already has an answer here:

I'm looking for a strong chess program for GNU/Linux with a command line interface, or one that I can alter to make it suit my needs

After a quick search, I found the question Chess program for Linux/Unix console, which gives some programs that are either too slow or too weak (with no command line though, it was on terminal, but that is easily manageable).

marked as duplicate by Glorfindel, GloriaVictis, user1108, sharcashmo, Cleveland Oct 24 '16 at 21:05

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    So the main differences between your question and the other question is that you are looking for strong programs. Are there any other differences? (E.g. screen reader accessibility?) – user800 Oct 8 '16 at 17:26
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    Your question makes no sense. Stockfish is part of the answer. You can't get better than that. – SmallChess Oct 8 '16 at 22:18

I wrote about Stockfish in the link you had. I don't see there is any engine better than that.

  • OP may not understand the textual interface there. It's not "command line" as in "shell command line", it's the UCI interface. Free UCI documentation available for download at shredder.com I believe. – Jeff Y Oct 13 '16 at 16:56

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