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bug#61105: cp/mv: want a fatal --no-clobber

From: Pádraig Brady
Subject: bug#61105: cp/mv: want a fatal --no-clobber
Date: Tue, 31 Jan 2023 17:11:00 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Thunderbird/109.0

On 31/01/2023 16:55, Paul Eggert wrote:
On 2023-01-30 13:35, Pádraig Brady wrote:
This is a good observation.
Also the current "skip" functionality of coreutils cp -n
is already catered for with the --update option.

For consistency, there too the exit status should reflect whether the cp
action was done.

I installed the attached patch to implement this; comments welcome. In
the meantime I'm boldly closing the bug report.

I'm not sure I agree with making this change for --update.
Note POSIX doesn't specify -u (or -n TBH), so it's a
bit of a stretch to take its specification of
"All files were copied successfully" in this case,
when it wasn't considering these cases.

To me --update is less useful if it fails in this case.


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