* unexpected wildcard issue
@ 2007-03-08 4:51 Atom Smasher
2007-03-08 4:54 ` Dan Nelson
0 siblings, 1 reply; 4+ messages in thread
From: Atom Smasher @ 2007-03-08 4:51 UTC (permalink / raw)
To: zsh-users
### create some "xyz" file
$ touch {1..10}.xyz
### check that they're there, using a wildcard
$ ls *xyz
0.xyz 1.xyz 10.xyz 2.xyz 3.xyz 4.xyz 5.xyz 6.xyz 7.xyz
8.xyz 9.xyz
### create another file with a leading dash in the filename
$ touch ./-11.xyz
### check again, with a wildcard
$ ls *xyz
ls: illegal option -- .
usage: ls [-ABCFGHILPRSTWZabcdfghiklmnopqrstuwx1] [file ...]
:::::::::::
should the shell protect expanded file names, as if they were entered in
quotes?
--
...atom
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: unexpected wildcard issue
2007-03-08 4:51 unexpected wildcard issue Atom Smasher
@ 2007-03-08 4:54 ` Dan Nelson
2007-03-08 5:12 ` Atom Smasher
0 siblings, 1 reply; 4+ messages in thread
From: Dan Nelson @ 2007-03-08 4:54 UTC (permalink / raw)
To: Atom Smasher; +Cc: zsh-users
In the last episode (Mar 07), Atom Smasher said:
> ### create some "xyz" file
> $ touch {1..10}.xyz
>
> ### check that they're there, using a wildcard
> $ ls *xyz
> 0.xyz 1.xyz 10.xyz 2.xyz 3.xyz 4.xyz 5.xyz 6.xyz 7.xyz
> 8.xyz 9.xyz
>
> ### create another file with a leading dash in the filename
> $ touch ./-11.xyz
>
> ### check again, with a wildcard
> $ ls *xyz
> ls: illegal option -- .
> usage: ls [-ABCFGHILPRSTWZabcdfghiklmnopqrstuwx1] [file ...]
>
> :::::::::::
>
> should the shell protect expanded file names, as if they were entered
> in quotes?
Doesn't matter. Even if quoted, ls would still see as its first
argument something starting with a dash, which it will interpret as an
option. Use "ls -- *xyz" or "ls ./*xyz" to ensure that none of the
expanded filenames get mistaken for options.
--
Dan Nelson
dnelson@allantgroup.com
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: unexpected wildcard issue
2007-03-08 4:54 ` Dan Nelson
@ 2007-03-08 5:12 ` Atom Smasher
2007-03-08 17:47 ` Bart Schaefer
0 siblings, 1 reply; 4+ messages in thread
From: Atom Smasher @ 2007-03-08 5:12 UTC (permalink / raw)
To: zsh-users
On Wed, 7 Mar 2007, Dan Nelson wrote:
> Doesn't matter. Even if quoted, ls would still see as its first
> argument something starting with a dash, which it will interpret as an
> option. Use "ls -- *xyz" or "ls ./*xyz" to ensure that none of the
> expanded filenames get mistaken for options.
==================
ok... so, should the shell insert an implied "--" before expanding
wildcards or globs? is there an option for that? should there be?
thanks...
--
...atom
________________________
http://atom.smasher.org/
762A 3B98 A3C3 96C9 C6B7 582A B88D 52E4 D9F5 7808
-------------------------------------------------
"When one tries to rise above Nature one is
liable to fall below it."
-- Sherlock Holmes (Arthur Conan Doyle)
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: unexpected wildcard issue
2007-03-08 5:12 ` Atom Smasher
@ 2007-03-08 17:47 ` Bart Schaefer
0 siblings, 0 replies; 4+ messages in thread
From: Bart Schaefer @ 2007-03-08 17:47 UTC (permalink / raw)
To: Atom Smasher, zsh-users
On Mar 8, 12:12am, Atom Smasher wrote:
}
} ok... so, should the shell insert an implied "--" before expanding
} wildcards or globs? is there an option for that? should there be?
There was a long, not-quite-heated discussion of this on the POSIX
standards list ("austin-group") late last year.
The end result of the discussion was that David Korn (as in ksh)
suggested that this should be a line editor operation; that is, you
type some key sequence, and the line editor finds the place between
the rightmost word that starts with a hyphen and the leftmost word
that does not, and inserts "--" there. I believe PWS even wrote a
function for this and sent it to zsh-users.
No, I'm wrong; I'm thinking of zsh-users/10793, which is for a similar
but not quite identical problem. However, it should be easy to adapt
that function to do this.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2007-03-08 4:51 unexpected wildcard issue Atom Smasher
2007-03-08 4:54 ` Dan Nelson
2007-03-08 5:12 ` Atom Smasher
2007-03-08 17:47 ` Bart Schaefer
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