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Re: feature request: file_not_found_handle()


From: Chet Ramey
Subject: Re: feature request: file_not_found_handle()
Date: Tue, 20 Aug 2013 11:16:15 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130801 Thunderbird/17.0.8

On 8/20/13 11:02 AM, Greg Wooledge wrote:
> On Tue, Aug 20, 2013 at 05:48:12PM +0300, Aharon Robbins wrote:
>> In article <address@hidden> you write:
>>> 1) PATH is used by the kernel (exec family) to determine how commands are
>>>   executed.  The way PATH is used by the kernel is not likely to change.
>>>   Having the shell treat it differently would lead to confusion.
>>
>> Actually, PATH searching is implemented in the C library and always
>> has been; there is only one real system call.  The confusion likely arises
>> from the traditional practice of documenting all the exec calls on the
>> same manpage.
> 
> Oh, really?  That's very misleading and confusing.

It depends; most people don't really need to know the difference.  But
yes, there is traditionally only execve(2) and everything else is built
on top of it.

Chet
-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/



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