Gentoo Archives: gentoo-user

From: Volker Armin Hemmann <volkerarmin@××××××××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: [OT] fast recursive local copy
Date: Fri, 14 Aug 2009 08:30:24
Message-Id: 200908141030.12001.volkerarmin@googlemail.com
In Reply to: [gentoo-user] Re: [OT] fast recursive local copy by Nikos Chantziaras
1 On Freitag 14 August 2009, Nikos Chantziaras wrote:
2 > On 08/14/2009 05:47 AM, meino.cramer@×××.de wrote:
3 > > Hi,
4 > >
5 > > I am looking for a faster way to do a
6 > >
7 > > cp -a r<thisdir> <thatdir>
8 > >
9 > > locally on one machine with one harddisk inside.
10 > >
11 > > Is there a neat trick to accomplish this faster than
12 > > good old cp?
13 >
14 > Nope. Some people like to use pipes in hope to speed it up, something
15 > like:
16 >
17 > tar -c <thisdir> | tar -xC <thatdir>
18 >
19 > but this isn't really faster and fscks up sparse files.
20 >
21 > But if <thatdir> already contains some files from <thisdir>, then rsync
22 > would be faster than cp. If not, stick with cp.
23
24 use cp with -u and files already existing are skipped.