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bug#9450: Bug report on 'dirname' : when jokers match several files

From: Eric Blake
Subject: bug#9450: Bug report on 'dirname' : when jokers match several files
Date: Tue, 06 Sep 2011 08:24:17 -0600
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9450 tag wishlist

On 09/06/2011 07:53 AM, Laurent TARRISSE wrote:

Here this a strange behaviour using 'dirname' with joker filename:

The term is 'wildcard', not 'joker'

dirname: too many arguments
Try `dirname --help' for more information.

Thanks for the report. To some degree, this is expected behavior: POSIX requires that portable shell scripts pass exactly one argument to dirname, so passing 0 or more than 1 arguments is necessarily in the realm of non-portable code, and we would rather error out if we don't have any better defined semantics for an extension.

Could 'dirname' process only its first parameter ?

No. But there _has_ been requests in the past to add an extension to GNU coreutils to match BSD dirname/basename semantics of optionally taking more than one parameter:


But so far, no one has submitted patches. Therefore, I'll keep this bug report open, but tag it as a wishlist.

Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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