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Re: report bug of program cp v5.2.1


From: Paul Eggert
Subject: Re: report bug of program cp v5.2.1
Date: Tue, 19 Sep 2006 09:49:52 -0700
User-agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.4 (gnu/linux)

"Connor Xu" <address@hidden> writes:

>     In the Fedora 3,the default version of cp program is 5.2.1. and the cp is 
> set a alias as "cp -i" in the file ~/.bashrc.
>     In this statement,the cp can not run well.
>     1, copy file named "a" into file named "b" with command "cp a b".
>     2  duplicate the step 1, it prompt that the file b is exist.  i think it 
> is well.
>     3  copy file  named  "a"  into file named  "b" with  command  "cp -rf a 
> b",  but the prompt is  still  appear.  In the other verions of  cp  can not  
> found this .

POSIX requires "cp -i -f" to have the same meaning as "cp -f -i".

This is a bit of an FAQ.  I installed the following patch to the
documentation to try to clarify things.

2006-09-19  Paul Eggert  <address@hidden>

        * coreutils.texi (cp invocation): Say that -i and -f are
        independent.  Clarify -i's behavior.

--- doc/coreutils.texi  8 Sep 2006 17:19:52 -0000       1.349
+++ doc/coreutils.texi  19 Sep 2006 16:47:16 -0000
@@ -6890,6 +6890,9 @@ tries to open it again.  Contrast this b
 is never opened but rather is unlinked unconditionally.  Also see the
 description of @option{--remove-destination}.
 
+This option is independent of the @option{--interactive} or
address@hidden option: neither cancels the effect of the other.
+
 @item -H
 @opindex -H
 If a command line argument specifies a symbolic link, then copy the
@@ -6901,7 +6904,8 @@ via recursive traversal.
 @itemx --interactive
 @opindex -i
 @opindex --interactive
-Prompt whether to overwrite existing regular destination files.
+When copying a regular file, prompt whether to overwrite an existing
+destination file.
 
 @item -l
 @itemx --link




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