On Sat, 2006-01-14 at 17:16 +0800, John Summerfied wrote:
> Parameshwara Bhat wrote:
> > Hello List,
> >
> > I want to copy /usr to a new partition and then attach that at /usr. I
> > issued a command
> >
> > cp -options(recursive included) /usr /mnt/"mountpoint
> >
> > This resulted in the creation of a new "usr" directory under
> > /mnt/"mountpoint"/usr and contents of /usr went into sub-directories.
> > What I want is to copy all the subdirectories and files directly under
> > /usr to go at /mnt/"mountpoint" for obvious reasons. How do I do that?
> > "Man cp" did not give me any clue.
try a simpler command
cp -a /usr/* /mnt/mountpoint
What you did was copy /usr and all its contents to the new location.
What you wanted was to copy all the contents of /usr to the new
location.
The -a option does the recursive/permissions/preserve link.
-a, --archive
same as -dpR
Note, that if the source has any hidden files (names beginning with
a . ) you will have to account for that and cannot use /usr/* by itself.
However, AFAIK there are no .files in /usr so the command I gave above
would work for you.
> cp never seems to do what I want, so I'd
> sudo -s
> tar clC / usr | tar xpC /mnt/mountpoint
>
> which has the great merit of being easily extended to copy between machines:
> tar clC / usr | \ssh otherbox tar xpC /mnt/mountpoint[1]
>
> and of course one can compress or not.
>
> >
> > Also, is there a command which compares each file under two directory
> > trees for difference.(I want to verify after the above operation)
>
> diff
>
>
> 1
> I got caught one or twice: I have set ssh to an alias:
> alias ssh='ssh -t'
> and that breaks piping stuff across the network. Use of the backslash
> prevents use of the alias.
>
>
>
> --
>
> Cheers
> John
>
> -- spambait
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>
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>
