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From: doug@cs.dartmouth.edu (Doug McIlroy)
Subject: [TUHS] etymology of read -u
Date: Tue, 31 May 2016 03:27:43 -0400	[thread overview]
Message-ID: <201605310727.u4V7Rhmp030422@coolidge.cs.Dartmouth.EDU> (raw)

What's the mnmonic significance, if any, of the u in
the bash builtin read -u for reading from a specified
file descriptor? Evidently both f and d had already been
taken in analogy to usage in some other commands.

The best I can think of is u as in "tape unit", which
was common usage back in the days of READ INPUT TAPE 5.
That would make it the work of an old timer, maybe Dave Korn?



             reply	other threads:[~2016-05-31  7:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-31  7:27 Doug McIlroy [this message]
2016-05-31 12:55 ` Chet Ramey
2016-05-31 14:35 ` Joerg Schilling
     [not found] ` <CAEoi9W4YTdJ2bJyAKVQqpd48bTLv7GANrtAK271oXnibuo8v6A@mail.gmail.com>
     [not found]   ` <CAPz8ZkZjLr1Uj-3VLKK1n5xZq=eeHh+HBeTNHbDVxVTKH+CvCw@mail.gmail.com>
2016-05-31 15:57     ` Dan Cross
2016-05-31 16:49       ` Joerg Schilling
2016-06-01  4:14 Doug McIlroy
2016-06-01  4:17 Doug McIlroy

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