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Re: [PATCH] Adding support for '--' in builtin echo's option parsing.
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From: |
Chet Ramey |
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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 15:48:37 -0400 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130307 Thunderbird/17.0.4 |
On 4/1/13 3:32 PM, Dave Rutherford wrote:
>> 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?
It's not; echo has never behaved this way. Any code that would use
`echo --' is, by definition, new code and new code should use printf.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/