Re: Piping to stdin

From	Kaz Kylheku <864-117-4973@kylheku.com>
Newsgroups	comp.unix.programmer, comp.lang.c
Subject	Re: Piping to stdin
Date	2023-08-15 04:59 +0000
Organization	A noiseless patient Spider
Message-ID	<20230814215312.550@kylheku.com> (permalink)
References	(2 earlier) <ubbua5$3hium$1@news.xmission.com> <20230813200644.979@kylheku.com> <ubc63c$3hlul$2@news.xmission.com> <ubdgcv$2carp$2@dont-email.me> <vo5rqj-lpl.ln1@paranoia.mcleod-schmidt.id.au>

Cross-posted to 2 groups.

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On 2023-08-15, Gary R. Schmidt <grschmidt@acm.org> wrote:
> On 15/08/2023 01:14, Kalevi Kolttonen wrote:
>> In comp.unix.programmer Kenny McCormack <gazelle@shell.xmission.com> wrote:
>>> You know that - and I know that - but do they know that?
>> 
>> It makes no difference. In the real world nobody has
>> files named '-'.
>> 
>> br,
>> KK
>
> Ahah!  You don't have users, do you?
>
> No doubt you also don't encounter filenames with spaces in them, or 
> carriage returns, or other garbage.

The interesction of:

- Users who make filenames like "-foo" and "monthly forecast.xls"

- Users who sit in a POSIX shell expanding wildcards like *
  in the same directory.

is probababy vanishingly nil, and the subset of those who do the
above in the same directory is even smaller.

Now admin scripts do have to handle the files created by the goofy users
in the first category.

Admin scripts don't ahve to worry about users creating a file
called -, because admin scripts won't be run in the directory
where the user did that. Not even scripts which do process
paths traversing that directory. The admin (or cron, or systemd or
whatever) will run those from somewhere else.

-- 
TXR Programming Language: http://nongnu.org/txr
Cygnal: Cygwin Native Application Library: http://kylheku.com/cygnal
Mastodon: @Kazinator@mstdn.ca

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Re: Piping to stdin Spiros Bousbouras <spibou@gmail.com> - 2023-08-13 13:55 +0000
  Re: Piping to stdin Spiros Bousbouras <spibou@gmail.com> - 2023-08-13 14:27 +0000
    Re: Piping to stdin gazelle@shell.xmission.com (Kenny McCormack) - 2023-08-14 00:59 +0000
      Re: Piping to stdin Kaz Kylheku <864-117-4973@kylheku.com> - 2023-08-14 03:07 +0000
        Re: Piping to stdin gazelle@shell.xmission.com (Kenny McCormack) - 2023-08-14 03:12 +0000
          Re: Piping to stdin kalevi@kolttonen.fi (Kalevi Kolttonen) - 2023-08-14 15:14 +0000
            Re: Piping to stdin "Gary R. Schmidt" <grschmidt@acm.org> - 2023-08-15 12:50 +1000
              Re: Piping to stdin Kaz Kylheku <864-117-4973@kylheku.com> - 2023-08-15 04:59 +0000
                Re: Piping to stdin Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2023-08-14 23:15 -0700
                Re: Piping to stdin Richard Kettlewell <invalid@invalid.invalid> - 2023-08-15 08:50 +0100
                Dealing with weird filenames (Was: Piping to stdin) gazelle@shell.xmission.com (Kenny McCormack) - 2023-08-15 08:10 +0000
                Re: Piping to stdin David Brown <david.brown@hesbynett.no> - 2023-08-15 15:34 +0200
                Re: Piping to stdin Richard Harnden <richard.nospam@gmail.com> - 2023-08-15 19:50 +0100
                Re: Piping to stdin scott@slp53.sl.home (Scott Lurndal) - 2023-08-15 20:16 +0000
                Re: Piping to stdin vallor <vallor@cultnix.org> - 2023-08-16 06:34 +0000
                Re: Piping to stdin Richard Kettlewell <invalid@invalid.invalid> - 2023-08-16 17:39 +0100
                Re: Piping to stdin scott@slp53.sl.home (Scott Lurndal) - 2023-08-16 17:37 +0000
                Re: Piping to stdin gazelle@shell.xmission.com (Kenny McCormack) - 2023-08-16 17:43 +0000
                Re: Piping to stdin Spiros Bousbouras <spibou@gmail.com> - 2023-08-16 19:22 +0000
                Re: Piping to stdin Kaz Kylheku <864-117-4973@kylheku.com> - 2023-08-16 20:10 +0000
                Re: Piping to stdin Kaz Kylheku <864-117-4973@kylheku.com> - 2023-08-16 20:11 +0000
                Re: Piping to stdin Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2023-08-16 13:35 -0700
                Re: Piping to stdin Geoff Clare <geoff@clare.See-My-Signature.invalid> - 2023-08-17 13:34 +0100
                Re: Piping to stdin Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2023-08-17 14:27 -0700
                Re: Piping to stdin Phil Carmody <pc+usenet@asdf.org> - 2023-08-17 14:51 +0300
                Re: Piping to stdin James Kuyper <jameskuyper@alumni.caltech.edu> - 2023-08-16 01:37 -0400
                Re: Piping to stdin David Brown <david.brown@hesbynett.no> - 2023-08-16 13:14 +0200
                Re: Piping to stdin Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2023-08-15 12:08 -0600
                Re: Piping to stdin Richard Harnden <richard.nospam@gmail.com> - 2023-08-16 09:32 +0100
                Re: Piping to stdin Phil Carmody <pc+usenet@asdf.org> - 2023-08-16 17:27 +0300
              Re: Piping to stdin kalevi@kolttonen.fi (Kalevi Kolttonen) - 2023-08-15 14:30 +0000
                Re: Piping to stdin Giovanni <lsodgf0@home.net.it> - 2023-08-15 17:14 +0200
                Re: Piping to stdin gazelle@shell.xmission.com (Kenny McCormack) - 2023-08-15 15:48 +0000
                Re: Piping to stdin kalevi@kolttonen.fi (Kalevi Kolttonen) - 2023-08-15 16:12 +0000
                Re: Piping to stdin Muttley@dastardlyhq.com - 2023-08-15 16:15 +0000
                Re: Piping to stdin kalevi@kolttonen.fi (Kalevi Kolttonen) - 2023-08-15 16:22 +0000
                Re: Piping to stdin Muttley@dastardlyhq.com - 2023-08-17 10:26 +0000
                Re: Piping to stdin kalevi@kolttonen.fi (Kalevi Kolttonen) - 2023-08-17 14:23 +0000
                Re: Piping to stdin scott@slp53.sl.home (Scott Lurndal) - 2023-08-17 15:25 +0000
                Re: Piping to stdin Kaz Kylheku <864-117-4973@kylheku.com> - 2023-08-15 17:33 +0000
                Re: Piping to stdin Phil Carmody <pc+usenet@asdf.org> - 2023-08-15 23:32 +0300
                Re: Piping to stdin Muttley@dastardlyhq.com - 2023-08-17 10:32 +0000
                Re: Piping to stdin Phil Carmody <pc+usenet@asdf.org> - 2023-08-17 14:57 +0300
                Re: Piping to stdin Geoff Clare <geoff@clare.See-My-Signature.invalid> - 2023-08-17 13:49 +0100
                Re: Piping to stdin Muttley@dastardlyhq.com - 2023-08-17 15:15 +0000
                Wrecking a good thing? (Was: Piping to stdin) gazelle@shell.xmission.com (Kenny McCormack) - 2023-08-17 14:09 +0000
                Re: Wrecking a good thing? Phil Carmody <pc+usenet@asdf.org> - 2023-08-18 00:39 +0300
                Re: Wrecking a good thing? (Was: Piping to stdin) David Brown <david.brown@hesbynett.no> - 2023-08-18 11:17 +0200
                Re: Piping to stdin Muttley@dastardlyhq.com - 2023-08-17 15:14 +0000
                Re: Piping to stdin Kaz Kylheku <864-117-4973@kylheku.com> - 2023-08-17 13:52 +0000
                Re: Piping to stdin Muttley@dastardlyhq.com - 2023-08-17 15:20 +0000
                Re: Piping to stdin Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2023-08-17 13:43 -0700
                Re: Piping to stdin David Brown <david.brown@hesbynett.no> - 2023-08-18 11:28 +0200
                Re: Piping to stdin Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-08-17 21:52 +0100
                Re: Piping to stdin Phil Carmody <pc+usenet@asdf.org> - 2023-08-19 13:33 +0300
                Re: Piping to stdin Oğuz <oguzismailuysal@gmail.com> - 2023-08-19 16:15 +0300
                Re: Piping to stdin Muttley@dastardlyhq.com - 2023-08-19 14:48 +0000
                Re: Piping to stdin scott@slp53.sl.home (Scott Lurndal) - 2023-08-20 17:24 +0000
                Re: Piping to stdin Muttley@dastardlyhq.com - 2023-08-20 19:21 +0000
                Re: Piping to stdin Rainer Weikusat <rweikusat@talktalk.net> - 2023-08-20 21:57 +0100
                What language is this? (Was: Piping to stdin) gazelle@shell.xmission.com (Kenny McCormack) - 2023-08-20 22:33 +0000
                Re: What language is this? (Was: Piping to stdin) scott@slp53.sl.home (Scott Lurndal) - 2023-08-21 01:26 +0000
                Re: What language is this? (Was: Piping to stdin) gazelle@shell.xmission.com (Kenny McCormack) - 2023-08-21 02:57 +0000
                Re: What language is this? Rainer Weikusat <rweikusat@talktalk.net> - 2023-08-21 17:16 +0100
                Re: What language is this? gazelle@shell.xmission.com (Kenny McCormack) - 2023-08-21 19:10 +0000
                Re: What language is this? Rainer Weikusat <rweikusat@talktalk.net> - 2023-08-21 20:31 +0100
                Re: What language is this? gazelle@shell.xmission.com (Kenny McCormack) - 2023-08-21 20:29 +0000
                Re: What language is this? Rainer Weikusat <rweikusat@talktalk.net> - 2023-08-21 21:48 +0100
                Re: What language is this? (Was: Piping to stdin) Muttley@dastardlyhq.com - 2023-08-21 06:50 +0000
                Re: Piping to stdin Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-08-19 21:14 +0100
                Re: Piping to stdin kalevi@kolttonen.fi (Kalevi Kolttonen) - 2023-08-20 02:02 +0000
                Re: Piping to stdin Phil Carmody <pc+usenet@asdf.org> - 2023-08-15 23:24 +0300
                Re: Piping to stdin Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2023-08-15 20:50 +0000
                Re: Piping to stdin Phil Carmody <pc+usenet@asdf.org> - 2023-08-16 17:11 +0300
                Re: Piping to stdin Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2023-08-16 15:25 +0000
                Re: Piping to stdin Kaz Kylheku <864-117-4973@kylheku.com> - 2023-08-16 19:29 +0000
                Re: Piping to stdin Phil Carmody <pc+usenet@asdf.org> - 2023-08-17 14:49 +0300
                Re: Piping to stdin Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-08-16 03:20 +0100
                Re: Piping to stdin Phil Carmody <pc+usenet@asdf.org> - 2023-08-15 18:33 +0300
      Re: Piping to stdin "Nuno Silva" <nunojsilva@invalid.invalid> - 2023-08-14 09:45 +0100
  Re: Piping to stdin Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2023-08-13 21:26 -0600
    Re: Piping to stdin Spiros Bousbouras <spibou@gmail.com> - 2023-08-14 09:24 +0000
      Re: Piping to stdin Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-08-14 11:29 +0100
        Re: Piping to stdin gazelle@shell.xmission.com (Kenny McCormack) - 2023-08-14 11:28 +0000
          Re: Piping to stdin scott@slp53.sl.home (Scott Lurndal) - 2023-08-14 15:41 +0000
            Re: Piping to stdin Richard Harnden <richard.nospam@gmail.com> - 2023-08-14 22:02 +0100
              Re: Piping to stdin scott@slp53.sl.home (Scott Lurndal) - 2023-08-14 21:14 +0000

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