[PATCH] adding two new options to 'cp' (UPDATE)
Eric Anderson
anderson at centtech.com
Tue Aug 1 12:44:04 UTC 2006
On 07/26/06 21:51, Eric Anderson wrote:
> I'm tired of trying to use rsync or gcp (which doesn't like symlinks
> often) to copy trees of files/directories using hard links, so I added
> the gcp-ish options -a and -l.
>
> -a is 'archive' mode, which is just a quick form of -PpR.
> -l is 'link' mode, where regular files get hard linked instead of copied.
>
> So, you can mimic an entire tree with something like:
>
> cp -al /from/ /to/
>
> and it's fast too!
>
> Patch is against 6-STABLE, but works well on 7-CURRENT as well.
>
> Patch is here (with man page edits):
> http://www.googlebit.com/freebsd/patches/cp-patch
>
> cd /tmp/
> fetch http://www.googlebit.com/freebsd/patches/cp-patch
> cd /usr/src/
> patch < /tmp/cp-patch
> cd bin/cp
> make && make install
I've made an updated patch available. It fixes the missing information
in the usage output, a file descriptor leak, and also now warns when an
attempt to copy a socket occurs instead of erroring. This isn't really
particular to any of the new arguments, but is more consistent with
other tools, and consistent with cp's other options that just warn.
The new patch can be found here:
http://www.googlebit.com/freebsd/patches/cp-patch-2
Eric
--
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Eric Anderson Sr. Systems Administrator Centaur Technology
Anything that works is better than anything that doesn't.
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