On Thu, Feb 01, 2001 at 10:04:31AM -0600, Adam Blomberg wrote: > I'm trying to figure out how to use tar (preferrably with gzip) to create > a tarball which creates a new file when each .tar (or better yet, each > tar.gz) reaches a size of 2.2 Gbytes. > > Essentially, I want to archive a large directory into 2.2 Gbyte tarballs > which are "spanning" in nature. I have an 18 Gbyte directory tree that I > want to compress into a set of 2.2 Gbyte archives so that I can copy the > individual tarballs onto separate DVD-RAM media later. It appears that > the -M (multple) flag only works properly when you actually run out of > space on the medium you are archiving to. Is there a way to force tar to > create iterative files in a specified size? > > Thus far, I haven't figured it out from the man pages, nor from a number > of 'net searches of list archives. If anybody knows the proper arguments > to achieve this, please let me know. I absolutely refuse to use windows > to perform this spanning archive process, as I am trying to work solely in > GNU/Linux. I was looking through the manpages when I realized there's another way to do this. You lose the ability to recover from tarfile errors, but I presume you're willing to risk that since you were planning on using gzip anyway ... tar cf - dir | gzip -9 | split --bytes=2252m This should create 2.2 G files named "xaa", "xab", "xac" ... which, when joined, will be a compressed tar file. Cheers, -- Nathan Norman - Staff Engineer | A good plan today is better Micromuse Inc. | than a perfect plan tomorrow. mailto:nnorman@micromuse.com | -- Patton
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