Quote:> Hi, we have a 800 MB compressed file that we want to put on 2 cd's. Are
> there compression options (assuming it's still greater than 650MB) that
will
> allow us to create two or more files? (and then allow us to recombine
them
> on a different machine?)
cat Big-file* | uncompress > Big-File
> Hi, we have a 800 MB compressed file that we want to put on 2 cd's. Are
> there compression options (assuming it's still greater than 650MB) that will
> allow us to create two or more files? (and then allow us to recombine them
> on a different machine?)
Your proceedures would be along the lines of:
$ split -b 645m filename.tar.Z filename # the second filename is a
# split file prefix
$ ls filename*
filename.tar.Z
filenameaa
filenameab
$ sum filename.tar.Z
07823 339 filename.tar.Z
# Copy the filenameaa and filenameab onto the 2 CDs. Then copy
# them onto the new system.
# On new system
$ cat filenameaa filenameab > filename.tar.Z
$ sum filename.tar.Z
07823 339 filename.tar.Z
- Matt
--
_______________________________________________________________________
IBM High Speed Interconnect - Fibre Channel I/O Dev/Test/Support
<< Comments, views, and opinions are mine alone, not IBM's. >>
Quote:> compress Big-file
> split Big-file
> cat Big-file* | uncompress > Big-File
> > Hi, we have a 800 MB compressed file that we want to put on 2 cd's. Are
> > there compression options (assuming it's still greater than 650MB) that
will
> > allow us to create two or more files? (and then allow us to recombine
them
> > on a different machine?)
> Use the split command to get it into a number of smaller files and
> cat to put it back together. Split uses the prefix "x" by default.
> So it could be good to specify a prefix. Be sure to use the `sum`
> command to verify that the copy made it back to the exact same as
> the origional.
> Your proceedures would be along the lines of:
> $ split -b 645m filename.tar.Z filename # the second filename is a
> # split file prefix
> $ ls filename*
> filename.tar.Z
> filenameaa
> filenameab
> $ sum filename.tar.Z
> 07823 339 filename.tar.Z
> # Copy the filenameaa and filenameab onto the 2 CDs. Then copy
> # them onto the new system.
> # On new system
> $ cat filenameaa filenameab > filename.tar.Z
> $ sum filename.tar.Z
> 07823 339 filename.tar.Z
> - Matt
> --
> _______________________________________________________________________
> IBM High Speed Interconnect - Fibre Channel I/O Dev/Test/Support
> << Comments, views, and opinions are mine alone, not IBM's. >>
>> cat Big-file* | uncompress > Big-File
http://www.rs6000.ibm.com/doc_link/en_US/a_doc_lib/aixgen/topnav/topn...
can be very useful. Other posts have answered your question here
more completely.
1. Splitting large tar into several smaller ones
I've got a large (30+ meg) tar file that I want to chop up into more
manageable pieces. It consists of many subdirectories - each about 1.2
megs in size. These are in 7 groups (A1-n, B1-n, etc). (Yep,
Linux'ers - this is the SLS tar....)
I'm wary of just using split in a brute force manner, as these are
compressed binary files and my previous attempts have left me with
damaged files.
What I really would like is a way to extract all the "A" files, and
retar them into one smaller tar file, then same for all the B's, etc.
Can anyone suggest a straightforward way to do this?
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