In Linux, the TTY command prints the file name of the terminal connected to standard input.

Maybe the first "t" means "terminal", the second "t" means "to of connected to", but what does the letter "y" mean here?

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    -1 what makes you think this is a question about learning English? – It's Over Apr 4 '16 at 18:13
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    I'm voting to close this question as off-topic because this is veering right off the topic of learning the English language. – Nihilist_Frost Apr 5 '16 at 2:36
  • If asking about the meaning of ^^ is on topic, I don't see how asking about an actual English acronym, word or abbreviation is off topic! I actually learned some English (and history) from this question. @NathanTuggy et al. – Alan Carmack Apr 5 '16 at 4:15
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    If you Google search "TTY", there are two Wikipedia articles at the very top that answer this question. This could have been answered with a bit of research. – user3169 Apr 5 '16 at 5:01

The origin of TTY in Unix is from teletype terminals Source - Unix.SE

However for future reference, this probably is out of the scope of ELL (or even English Language and Usage) as it requires too much specialist knowledge.

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    Thus TeleTYpe. See also Wikipedia on the teletype or teleprinter. – Alan Carmack Apr 4 '16 at 14:56
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    Answering a question that's out of scope is ... not that great an idea. – Nathan Tuggy Apr 4 '16 at 18:25

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