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Re: [Help-bash] How to understand non existent file is considered as the
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From: |
Chet Ramey |
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Subject: |
Re: [Help-bash] How to understand non existent file is considered as the oldest? |
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Date: |
Thu, 09 Apr 2015 22:39:14 -0400 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 |
On 4/9/15 6:25 PM, Peng Yu wrote:
> But the decision of non existent file as the oldest must have some
> rationale behind it. Could anybody let me know? (This might also help
> me memorize this rule better.)
You have to pick one or the other. Making non-existent files newer than
existing files is nonsensical, and considering them older is compatible
with the ksh implementation of -nt/-ot/-ef and consistent with how other
utilities, like `make', work.
--
``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/