--On Tuesday, March 11, 2003 00:38:08 +0100 Poul-Henning Kamp <[EMAIL PROTECTED]> wrote:
It is supposed to (based on MY reading of the fd(4) man page on a UnixWare (SysVr5) system)In message <[EMAIL PROTECTED]>, Conrad Sabatier writes:I've noticed that bash's process substitution fails under -CURRENT.
For (an admittedly stupid, trivial) example:
diff <(cat file1) <(cat file2)
errors out with:
diff: /dev/fd/63: No such file or directory diff: /dev/fd/62: No such file or directory
Apparently, the nodes for the named pipes are not being created as they should.
Is this a bash problem, or something in devfs not working as expected?
That's a good question...
Has anybody found out what the standards conformant thing is for /dev/fd ?
presently we do only 0,1 & 2, with the std{in,out,err} symlinks.
If we are required to do all filedescriptors, we should do so with fdescfs by default.
be ALL filedescriptors.
this paragraph seems to be the cogent part:
These files, conventionally called /dev/fd/0, /dev/fd/1, /dev/fd/2,
and so on, refer to files accessible through file descriptors. If file
descriptor n is open, these two system calls have the same effect:
fd = open("/dev/fd/n",mode);
fd = dup(n);The full manpage is visible at:
http://www.lerctr.org:8458/en/man/html.4/fd.4.html
LER
-- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [EMAIL PROTECTED] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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-- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 972-414-9812 E-Mail: [EMAIL PROTECTED] US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749
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