Re: unknown file attribute

Re: unknown file attribute

[ZyX]

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Reply to message «unknown file attribute», 
sent 22:33:19 02 April 2011, Saturday
by Manfred Lotz:

These are glob qualifiers: qualifiers `B' and `C' do not exist (that is why you 
see this error), but qualifier `A' means `group-readable files' and `D' means 
`set GLOB_DOTS option for the current pattern'. As there is no pattern then no 
files match it and zsh will behave according to its options:
1. If nullglob is set unmatched pattern is removed from argumnents list and
   `echo (A)' yields just a single newline.
2. If cshnullglob and nomatch are unset unmatched pattern is left as-is and
   `echo (A)' yields `(A)\n'
3. If either cshnullglob or nomatch are set then unmatched pattern prevents 
command from executing and `echo (A)' will yield an error (either `zsh: no 
matches found: (A)' if cshnullglob is unset or `zsh: nomatch' if it is set).

I suggest you to learn this glob quilifiers as they are really useful in some 
situations.

Original message:
> Hi there,
> I accidentally found that:
> 
> $ echo (B)
> 
> yields:
> 
> zsh: unknown file attribute
> 
> 
> Same for echo (C). However, echo (A) and echo (D) work. Any idea why
> that happens?
> 
> I know I could type: "(B)". But I want to save typing the "s.

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