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Re: Proposal for cp -a
> I propose to add option -a to cp(1).
> FreeBSD (since about 7.1), Linux and some other platforms have it,
> and I think it is very useful.
As Hubert noted me personally I need to explain what the purpose is.
Idea is clear, -a is equivalent to -RpP. With -a option we can easily
create an <A>rchive copy of src_dir directory by running the following
cp -a src_dir archive_dir
cp -Rp src_dir archive_dir
So, this whould be a minor improvement.
Code in attached file comes from FreeBSD.
Linux's 'cp -a' has the same semantics.
The following is a commit message from FreeBSD.
Add an '-a' option which is identical to specifying '-RpP' for
compatibility with other implementations.
It also makes sense to note in manual page that -P is the default
--- cp.1 26 Oct 2007 16:31:16 -0000 1.30
+++ cp.1 21 Dec 2010 06:00:36 -0000
@@ -106,6 +106,7 @@
don't copy file flags.
.It Fl P
No symbolic links are followed.
+This is the default.
.It Fl p
Best regards, Aleksey Cheusov.
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