What is /usr/bin/[ and how do I use it?

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Music by Eric Matyas
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Track title: Droplet of life

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Chapters
00:00 Question
00:49 Accepted answer (Score 37)
01:19 Answer 2 (Score 23)
01:55 Thank you

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Full question
https://superuser.com/questions/334549/w...

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Tags
#linux #bash #coreutils

#avk47