[TUHS] etymology of read -u

Joerg Schilling schily at schily.net
Wed Jun 1 00:35:57 AEST 2016


Doug McIlroy <doug at cs.dartmouth.edu> wrote:

> 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.

It seems to be a copy from ksh.

Ksh implements a private "print" builtin that also uses -u fd.

Jörg

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