Web lists-archives.com

Re: Bash heredoc on FD 3




On 12/3/2018 10:43 AM, cyg Simple wrote:

Same for me and interestingly:

$ ls -ld /dev/fd/*
ls: cannot access '/dev/fd/3': No such file or directory
ls: cannot access '/dev/fd/31': No such file or directory
lrwxrwxrwx 1 eboyd53 eboyd53 0 Dec  3 10:39 /dev/fd/0 -> /dev/pty2
lrwxrwxrwx 1 eboyd53 eboyd53 0 Dec  3 10:39 /dev/fd/1 -> /dev/pty2
lrwxrwxrwx 1 eboyd53 eboyd53 0 Dec  3 10:39 /dev/fd/2 -> /dev/pty2

Every process gets a standard input, output, and error file descriptor.
Other exist only if they're opened.  These are process-specific.

What's mysterious about the reported case is that the 3<< ... did not
seem to create a /dev/fd/3, at least not at the right "time" ...

Regards - Eliot Moss

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple