[LBo] question about using tar.gz for home backup
Douglas Orchard
duglas at twcny.rr.com
Wed Sep 5 22:46:07 CEST 2007
> I was reading the sidux page on backing up your home:
> http://sidux.com/index.php?module=pnWikka&tag=SecureHomeEN
>
> I had been using the line:
> tar cvzf /home /somewhere/home.tar.gz
>
> they mention using:
> tar -cf - /home | gzip -c9 > /somewhere/home.tar.gz
In the first method the command "tar" uses the z option to compress:
One command.
In the second method the pipe takes the output of one command and
delivers it to the second command: Two commands.
The theoretical end result is two commands take longer than one.
In practice your milage may vary.
FWIW I use the following:
tar -cpjf ~/Bakups/`date +%m-%d-%y`-user.tar.bz2 (here is a list of
files to be backed up).
The -p is preserve permissions and the -j is use bzip2 instead of gzip
and the command "date" in back-ticks gives a unique filename to the
output file.
keep on backing up!
--
Douglas Orchard
Registered Linux User
# 206698
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