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Re: '[ --version' should give output, instead a bash error missing re: missing ']'

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  Re: '[ --version' should give output, instead a bash error missing re: missing ']' Eric Blake <eblake@redhat.com> - 2015-09-22 09:39 -0600

#11543 — Re: '[ --version' should give output, instead a bash error missing re: missing ']'

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On 09/22/2015 08:22 AM, Daniel Simeone wrote:
> 
> Description:
>         According to the joint man page for '[' and 'test', '[ --version'
> and '[ --help' should give appropriate output, while 'test' should not.

You're probably reading the coreutils man page, rather than the bash man
page.

Bash has not (yet) implemented support for ANY --options to its
builtins, although there has been talk on the list of doing so for
future versions (especially since ksh has already done it).  If you are
executing the shell builtins instead of the coreutils versions, then the
behavior you see is expected and not a bug.

To see the behavior mentioned in the coreutils man page, be sure you run
the coreutils version of [, as in:

env [ --help
or
/bin/[ --help

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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