Re: Command line arguments

From	glen herrmannsfeldt <gah@ugcs.caltech.edu>
Newsgroups	comp.lang.c
Subject	Re: Command line arguments
Date	2013-01-11 00:11 +0000
Organization	Aioe.org NNTP Server
Message-ID	<kcnlc4$t32$1@speranza.aioe.org> (permalink)
References	<gYFHs.3$OX4.0@fx16.fr7> <slrnkeub42.2kpf.willem@turtle.stack.nl> <vuGHs.2122$%k.1283@fx11.fr7> <_1HHs.63$kp4.24@newsfe09.iad> <XkHHs.1971$k04.70@fx20.fr7>

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BartC <bc@freeuk.com> wrote:
> "Greg Martin" <greg@softsprocket.com> wrote in message
> news:_1HHs.63$kp4.24@newsfe09.iad...
>> On 13-01-10 01:34 PM, BartC wrote:

>>> It sounds like it will still be a problem under Linux

>> It's a feature not a problem.

> Suppose a program expects two parameters, both of which contain wildcards.

No program do that. Now you know why.

> The result will be a single list of files; how to tell where the first set
> of files ends, and the next begins? Or the second parameter should be a
> single file; how to tell whether that parameter was present? Etc.

There are cases where files can be lost due to misusing file expansion.

Users of some other systems sometimes try

mv abc.* xyz.*

If there are two files starting with abc., the first will replace
the second. Don't do that.

Now, there is another form of mv that takes a list of files and one
directory. It will only work if the last one in the list is a directory,
though.

>> It's part of the shell you are running - I'm guessing bash? You can use
>> the built-in set and turn it off:

>> set -o noglob

> I've have a look later. If that works, that's good. But I can see problems:
> it'll work on my system, but someone else running my program will also have
> to do that set command. And it might stop other programs working properly 
> that expect the expansion.

No programs expect the expansion, users do.

If you type

rm *.c

the rm command gets a list of files, which it deletes. With noglob, it
will (try to) delete a file named *.c, most likely one doesn't exist.

Normally, you either quote the file, or list of files, that you don't
want expanded, or escape with \ the * or ? you don't want expanded.

rm \*.c

will delete a file named *.c, instead of all .c files.

-- glen

Thread

Command line arguments "BartC" <bc@freeuk.com> - 2013-01-10 20:58 +0000
  Re: Command line arguments pu <uselpa.list@gmail.com> - 2013-01-10 22:02 +0100
    Re: Command line arguments pu <uselpa.list@gmail.com> - 2013-01-11 14:43 +0100
      Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-11 19:10 +0000
  Re: Command line arguments Willem <willem@turtle.stack.nl> - 2013-01-10 21:02 +0000
    Re: Command line arguments "BartC" <bc@freeuk.com> - 2013-01-10 21:34 +0000
      Re: Command line arguments Jorgen Grahn <grahn+nntp@snipabacken.se> - 2013-01-10 22:02 +0000
      Re: Command line arguments Greg Martin <greg@softsprocket.com> - 2013-01-10 14:13 -0800
        Re: Command line arguments "BartC" <bc@freeuk.com> - 2013-01-10 22:32 +0000
          Re: Command line arguments Lew Pitcher <lpitcher@teksavvy.com> - 2013-01-10 17:49 -0500
            Re: Command line arguments BruceS <bruces42@hotmail.com> - 2013-01-10 16:05 -0700
              Re: Command line arguments Lew Pitcher <lpitcher@teksavvy.com> - 2013-01-10 18:15 -0500
              Re: Command line arguments JohnF <john@please.see.sig.for.email.com> - 2013-01-11 06:54 +0000
                Re: Command line arguments Shao Miller <sha0.miller@gmail.com> - 2013-01-11 02:26 -0500
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-11 09:02 +0000
                Re: Command line arguments Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2013-01-11 11:17 -0700
                Re: Command line arguments Shao Miller <sha0.miller@gmail.com> - 2013-01-11 13:20 -0500
                Re: Command line arguments Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2013-01-11 13:13 -0700
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-11 19:22 +0000
                Re: Command line arguments Fred K <fred.l.kleinschmidt@gmail.com> - 2013-01-11 14:42 -0800
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-12 01:22 +0000
                Re: Command line arguments Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-01-12 01:39 +0000
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-12 03:16 +0000
                Re: Command line arguments Keith Thompson <kst-u@mib.org> - 2013-01-12 09:49 -0800
                Re: Command line arguments JohnF <john@please.see.sig.for.email.com> - 2013-01-12 04:14 +0000
                Re: Command line arguments Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2013-01-13 20:19 +0200
                Re: Command line arguments JohnF <john@please.see.sig.for.email.com> - 2013-01-14 04:56 +0000
                Re: Command line arguments Ken Brody <kenbrody@spamcop.net> - 2013-01-22 15:32 -0500
              Re: Command line arguments Ken Brody <kenbrody@spamcop.net> - 2013-01-22 15:25 -0500
          Re: Command line arguments Fred K <fred.l.kleinschmidt@gmail.com> - 2013-01-10 14:49 -0800
          Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-11 00:11 +0000
          Re: Command line arguments James Kuyper <jameskuyper@verizon.net> - 2013-01-10 21:16 -0500
          Re: Command line arguments Les Cargill <lcargill99@comcast.com> - 2013-01-11 21:25 -0600
      Re: Command line arguments James Kuyper <jameskuyper@verizon.net> - 2013-01-10 21:05 -0500
        Re: Command line arguments Shao Miller <sha0.miller@gmail.com> - 2013-01-10 21:15 -0500
          Re: Command line arguments 88888 Dihedral <dihedral88888@googlemail.com> - 2013-01-11 01:36 -0800
            Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-11 19:33 +0000
              Re: Command line arguments Shao Miller <sha0.miller@gmail.com> - 2013-01-11 14:57 -0500
              Re: Command line arguments Robert Wessel <robertwessel2@yahoo.com> - 2013-01-11 14:26 -0600
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-11 20:49 +0000
                Re: Command line arguments Robert Wessel <robertwessel2@yahoo.com> - 2013-01-11 18:15 -0600
                Re: Command line arguments Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-01-12 01:11 +0000
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-12 01:38 +0000
                Re: Command line arguments Tim Rentsch <txr@alumni.caltech.edu> - 2013-01-12 14:57 -0800
                Re: Command line arguments Shao Miller <sha0.miller@gmail.com> - 2013-01-12 18:08 -0500
                Re: Command line arguments Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-01-13 00:42 +0000
                Re: Command line arguments Tim Rentsch <txr@alumni.caltech.edu> - 2013-01-13 12:31 -0800
                Re: Command line arguments Robert Wessel <robertwessel2@yahoo.com> - 2013-01-13 04:54 -0600
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-13 12:37 +0000
                Re: Command line arguments Shao Miller <sha0.miller@gmail.com> - 2013-01-11 15:54 -0500
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-11 21:16 +0000
                Re: Command line arguments Greg Martin <greg@softsprocket.com> - 2013-01-11 13:17 -0800
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-11 22:48 +0000
              Re: Command line arguments gazelle@shell.xmission.com (Kenny McCormack) - 2013-01-11 22:53 +0000
              Re: Command line arguments "BartC" <bc@freeuk.com> - 2013-01-11 23:46 +0000
                Re: Command line arguments Robert Wessel <robertwessel2@yahoo.com> - 2013-01-11 18:12 -0600
                Re: Command line arguments Lew Pitcher <lpitcher@teksavvy.com> - 2013-01-11 19:59 -0500
                Re: Command line arguments Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-01-12 01:32 +0000
                Re: Command line arguments "BartC" <bc@freeuk.com> - 2013-01-12 02:47 +0000
                Re: Command line arguments Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-01-12 03:23 +0000
                Re: Command line arguments Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2013-01-11 22:28 -0700
                Re: Command line arguments Keith Thompson <kst-u@mib.org> - 2013-01-11 18:54 -0800
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-12 03:42 +0000
                Re: Command line arguments James Kuyper <jameskuyper@verizon.net> - 2013-01-11 23:18 -0500
                Re: Command line arguments "BartC" <bc@freeuk.com> - 2013-01-12 12:06 +0000
                Re: Command line arguments James Kuyper <jameskuyper@verizon.net> - 2013-01-12 11:43 -0500
                Re: Command line arguments Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2013-01-12 10:27 -0700
                Re: Command line arguments Keith Thompson <kst-u@mib.org> - 2013-01-12 10:22 -0800
                Re: Command line arguments "BartC" <bc@freeuk.com> - 2013-01-12 20:26 +0000
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-12 20:53 +0000
                Re: Command line arguments Geoff <geoff@invalid.invalid> - 2013-01-12 16:58 -0800
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-13 01:51 +0000
                Re: Command line arguments Geoff <geoff@invalid.invalid> - 2013-01-13 00:27 -0800
                Re: Command line arguments Sjouke Burry <s@b> - 2013-01-14 06:00 +0000
                Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-14 21:44 +0000
                Re: Command line arguments Shao Miller <sha0.miller@gmail.com> - 2013-01-12 16:10 -0500
                Re: Command line arguments "BartC" <bc@freeuk.com> - 2013-01-12 21:25 +0000
                Re: Command line arguments pacman@kosh.dhis.org (Alan Curry) - 2013-01-12 22:10 +0000
                Re: (OT keyboard input) "BartC" <bc@freeuk.com> - 2013-01-13 01:30 +0000
                Re: (OT keyboard input) Keith Thompson <kst-u@mib.org> - 2013-01-12 20:47 -0800
                Re: (OT keyboard input) pacman@kosh.dhis.org (Alan Curry) - 2013-01-13 08:46 +0000
                Re: (OT keyboard input) Robert Wessel <robertwessel2@yahoo.com> - 2013-01-13 03:56 -0600
                Re: (OT keyboard input) "BartC" <bc@freeuk.com> - 2013-01-13 12:10 +0000
                Re: (OT keyboard input) Lew Pitcher <lpitcher@teksavvy.com> - 2013-01-13 11:21 -0500
                Re: (OT keyboard input) 88888 Dihedral <dihedral88888@googlemail.com> - 2013-01-13 09:43 -0800
                Re: (OT keyboard input) "osmium" <r124c4u102@comcast.net> - 2013-01-13 12:09 -0600
                Re: (OT keyboard input) pacman@kosh.dhis.org (Alan Curry) - 2013-01-13 20:34 +0000
                Re: (OT keyboard input) "BartC" <bc@freeuk.com> - 2013-01-13 21:58 +0000
                Re: (OT keyboard input) Dr Nick <nospam-4@temporary-address.org.uk> - 2013-01-13 22:26 +0000
                Re: (OT keyboard input) Greg Martin <greg@softsprocket.com> - 2013-01-13 14:51 -0800
                Re: (OT keyboard input) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-01-13 23:47 +0000
                Re: (OT keyboard input) pacman@kosh.dhis.org (Alan Curry) - 2013-01-14 01:34 +0000
                Re: (OT keyboard input) James Kuyper <jameskuyper@verizon.net> - 2013-01-13 23:53 -0500
                Re: (OT keyboard input) Robert Wessel <robertwessel2@yahoo.com> - 2013-01-14 00:26 -0600
                Re: (OT keyboard input) James Kuyper <jameskuyper@verizon.net> - 2013-01-14 07:36 -0500
                Re: (OT keyboard input) Robert Wessel <robertwessel2@yahoo.com> - 2013-01-14 13:40 -0600
                Re: (OT keyboard input) "BartC" <bc@freeuk.com> - 2013-01-14 14:23 +0000
                Re: (OT keyboard input) "BartC" <bc@freeuk.com> - 2013-01-14 13:36 +0000
                Re: (OT keyboard input) James Kuyper <jameskuyper@verizon.net> - 2013-01-14 09:25 -0500
                Re: (OT keyboard input) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-01-14 21:09 +0000
                Re: (OT keyboard input) "BartC" <bc@freeuk.com> - 2013-01-14 22:06 +0000
                Re: (OT keyboard input) Nobody <nobody@nowhere.com> - 2013-01-15 08:16 +0000
                Re: (OT keyboard input) "BartC" <bc@freeuk.com> - 2013-01-15 11:50 +0000
                Re: (OT keyboard input) Keith Thompson <kst-u@mib.org> - 2013-01-15 07:53 -0800
                Re: (OT keyboard input) Nobody <nobody@nowhere.com> - 2013-01-15 20:26 +0000
                Re: (OT keyboard input) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-01-15 21:08 +0000
                Re: (OT keyboard input) "BartC" <bc@freeuk.com> - 2013-01-15 22:19 +0000
                Re: (OT keyboard input) James Kuyper <jameskuyper@verizon.net> - 2013-01-15 20:37 -0500
                Re: (OT keyboard input) Robert Wessel <robertwessel2@yahoo.com> - 2013-01-16 02:24 -0600
                Re: (OT keyboard input) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-01-16 04:28 +0000
                Re: (OT keyboard input) James Kuyper <jameskuyper@verizon.net> - 2013-01-16 06:44 -0500
                Re: (OT keyboard input) "BartC" <bc@freeuk.com> - 2013-01-16 13:57 +0000
                Re: (OT keyboard input) "BartC" <bc@freeuk.com> - 2013-01-16 14:32 +0000
                Re: (OT keyboard input) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-01-17 00:35 +0000
                Re: (OT keyboard input) pacman@kosh.dhis.org (Alan Curry) - 2013-01-15 23:51 +0000
                Re: (OT keyboard input) pacman@kosh.dhis.org (Alan Curry) - 2013-01-14 21:15 +0000
                Re: (OT keyboard input) "BartC" <bc@freeuk.com> - 2013-01-14 21:59 +0000
                Re: (OT keyboard input) Greg Martin <greg@softsprocket.com> - 2013-01-13 10:04 -0800
                Re: (OT keyboard input) Roberto Waltman <usenet@rwaltman.com> - 2013-01-13 20:09 -0500
      Re: Command line arguments Geoff <geoff@invalid.invalid> - 2013-01-10 23:47 -0800
    Re: Command line arguments Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2013-01-13 20:03 +0200
  Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-10 22:30 +0000
  Re: Command line arguments Shao Miller <sha0.miller@gmail.com> - 2013-01-10 18:12 -0500
    Re: Command line arguments Shao Miller <sha0.miller@gmail.com> - 2013-01-10 18:15 -0500
    Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-11 00:16 +0000
  Re: Command line arguments Keith Thompson <kst-u@mib.org> - 2013-01-10 15:46 -0800
  Re: Command line arguments Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2013-01-10 17:58 -0700
  Re: Command line arguments Johann Klammer <klammerj@NOSPAM.a1.net> - 2013-01-11 09:26 +0100
  Re: Command line arguments Les Cargill <lcargill99@comcast.com> - 2013-01-11 21:23 -0600
    Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-12 03:45 +0000
    Re: Command line arguments Philip Lantz <prl@canterey.us> - 2013-01-11 20:52 -0800
      Re: Command line arguments Les Cargill <lcargill99@comcast.com> - 2013-01-11 23:21 -0600
    Re: Command line arguments Keith Thompson <kst-u@mib.org> - 2013-01-12 09:52 -0800
  Re: Command line arguments James Dow Allen <jdallen2000@yahoo.com> - 2013-01-13 01:22 -0800
    Re: Command line arguments Shao Miller <sha0.miller@gmail.com> - 2013-01-13 11:11 -0500
      Re: Command line arguments Azazel <azazel@remove.azazel.net> - 2013-01-14 09:26 -0600
        Re: Command line arguments Shao Miller <sha0.miller@gmail.com> - 2013-01-14 17:08 -0500
          Re: Command line arguments glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-01-14 23:13 +0000
        Re: Command line arguments 88888 Dihedral <dihedral88888@googlemail.com> - 2013-01-14 22:11 -0800

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