Re: Regarding tar and split

2007-10-15 Thread Rick Thomas
Take a look at "rsnapshot". It uses "rsync --link-dest" and/or "cp - al" to do exactly what you like about "cp --backup=t". It maintains a series of snapshots of the filesystem with separate copies of changed files but only one copy of unchanged files. rsnapshot overlays all that with a si

Re: Regarding tar and split

2007-10-14 Thread s. keeling
Sean Zimmermann <[EMAIL PROTECTED]>: > Paul E Condon mesanetworks.net> writes: > > > > The difference is that afio compresses each input file individually, so > > if there is a read/write error, only one file is lost from the archive. > > I have one final question: some people have brought up

Re: Regarding tar and split

2007-10-13 Thread Jon Leonard
On Sat, Oct 13, 2007 at 11:11:35AM -0600, Paul E Condon wrote: [snip: remote backups] > It doesn't appear from the man page that rsync has the equivalent of > cp --backup=t > I use this and it is important to me. Nothing ever is deleted from my > backup until I do a clean-up sweep on it (which I h

Re: Regarding tar and split

2007-10-13 Thread Paul E Condon
On Sat, Oct 13, 2007 at 10:16:03AM -0400, Douglas A. Tutty wrote: > On Fri, Oct 12, 2007 at 10:07:28PM -0600, Paul E Condon wrote: > > On Sat, Oct 13, 2007 at 02:59:32AM +, Sean Zimmermann wrote: > > > > > I have one final question: some people have brought up the strength of > > > programs l

Re: Regarding tar and split

2007-10-13 Thread Douglas A. Tutty
On Fri, Oct 12, 2007 at 10:07:28PM -0600, Paul E Condon wrote: > On Sat, Oct 13, 2007 at 02:59:32AM +, Sean Zimmermann wrote: > > > I have one final question: some people have brought up the strength of > > programs like afio that compress files individually to protect against > > corruption

Re: Regarding tar and split

2007-10-12 Thread Paul E Condon
On Sat, Oct 13, 2007 at 02:59:32AM +, Sean Zimmermann wrote: > I have one final question: some people have brought up the strength of > programs like afio that compress files individually to protect against > corruption. Most of the things I archive are large image or movie files > (which ty

Re: Regarding tar and split

2007-10-12 Thread Sean Zimmermann
Paul E Condon mesanetworks.net> writes: > > The difference is that afio compresses each input file individually, so > if there is a read/write error, only one file is lost from the archive. > (Actually, there are a lot more differences - to start with the options > are totally different syntax an

Re: Regarding tar and split

2007-10-12 Thread Paul E Condon
On Thu, Oct 11, 2007 at 11:09:04PM -0400, Celejar wrote: > On Thu, 11 Oct 2007 20:48:10 +0200 > "Manon Metten" <[EMAIL PROTECTED]> wrote: > > > Hi Sean, > > > > You might consider using Lha. It does the same as tar and bzip2 together > > Tar itself integrates bzip2 via the 'j' switch. > > > Man

Re: Regarding tar and split

2007-10-12 Thread David Brodbeck
On Oct 11, 2007, at 2:53 PM, Carl Johnson wrote: Are you sure that you are not talking about afio? I looked at the documentation for cpio, and there is no mention of compression (for etch). You're probably right. I tend to conflate the two in my mind. -- To UNSUBSCRIBE, email to [EMAIL P

Re: Regarding tar and split

2007-10-11 Thread Carl Johnson
David Brodbeck <[EMAIL PROTECTED]> writes: > On Oct 11, 2007, at 5:01 AM, Sean Zimmermann wrote: > > If I ignored the indexing issue (since most of my work with tar is > > large, > > non-incremental backups where I typically restore the entire > > contents - > > it would be nice if there was index

Re: Regarding tar and split

2007-10-11 Thread Celejar
On Thu, 11 Oct 2007 20:48:10 +0200 "Manon Metten" <[EMAIL PROTECTED]> wrote: > Hi Sean, > > You might consider using Lha. It does the same as tar and bzip2 together Tar itself integrates bzip2 via the 'j' switch. > Manon. Celejar -- mailmin.sourceforge.net - remote access via secure (OpenPGP)

Re: Regarding tar and split

2007-10-11 Thread Manon Metten
Hi Sean, You might consider using Lha. It does the same as tar and bzip2 together (although you can disable compression). It has a simple syntax. You can also view the contents of the archive and even extract one single file from it. Example (suppose I have a 'work' dir with a.o. the file 'abc' i

Re: Regarding tar and split

2007-10-11 Thread David Brodbeck
On Oct 11, 2007, at 5:01 AM, Sean Zimmermann wrote: If I ignored the indexing issue (since most of my work with tar is large, non-incremental backups where I typically restore the entire contents - it would be nice if there was indexing, but is not a huge problem), should I still use somethi

Re: Regarding tar and split

2007-10-11 Thread Sean Zimmermann
Douglas A. Tutty porchlight.ca> writes: > Tar archive isn't designed for this, since its designed for sequential > devices. Have you considered using another archive format? Perhaps > iso? You can split and join iso files, mount them with loop mount, > compress, burn, whatever. > > Doug. If

Re: Regarding tar and split

2007-10-10 Thread Douglas A. Tutty
On Wed, Oct 10, 2007 at 09:43:33AM +, Sean Zimmermann wrote: > Also, is there some way to index a large tar file, so if I want to extract a > file at the end of a large archive, tar doesn't have to seek through the > entire > archive to get the file? Tar archive isn't designed for this, s

Re: Regarding tar and split

2007-10-10 Thread Ron Johnson
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/10/07 04:43, Sean Zimmermann wrote: > Hello. > > I frequently work with large tar archives that often need to be split into > smaller pieces. Up until now, I've used tar -m to create multi-part archives. > I - -M > recently read that I can us

Re: Regarding tar and split

2007-10-10 Thread Simon Jolle "sjolle"
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/10/2007 11:43 AM, Sean Zimmermann wrote: > Hello. Hi Sean > I frequently work with large tar archives that often need to be split into > smaller pieces. Up until now, I've used tar -m to create multi-part archives. > I > recently read that I c

Regarding tar and split

2007-10-10 Thread Sean Zimmermann
Hello. I frequently work with large tar archives that often need to be split into smaller pieces. Up until now, I've used tar -m to create multi-part archives. I recently read that I can use split to do the same thing. Is there an advantage or disadvantage to using split over tar -m? Also, is th