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Re: [PATCH] Adding support for '--' in builtin echo's option parsing.
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From: |
Dave Rutherford |
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Subject: |
Re: [PATCH] Adding support for '--' in builtin echo's option parsing. |
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Date: |
Mon, 01 Apr 2013 15:32:16 -0400 |
On Mon, Apr 01, 2013 at 03:16:07PM +0300, Hemmo Nieminen wrote:
> > Description:
> > Currently it seems to be impossible to e.g. print "-n" with the
> > builtin
> > echo witout any extra characters.
>
> You should use printf instead. The echo command is a historical artifact
> which cannot be used for general-purpose output.
>
> http://pubs.opengroup.org/onlinepubs/9699919799/utilities/echo.html says:
>
> The echo utility shall not recognize the "--" argument in the manner
> specified by Guideline 10 of XBD Utility Syntax Guidelines ; "--"
> shall be recognized as a string operand.
Perhaps this is worth adjusting unless POSIXLY_CORRECT?