On 03Jun2009 11:00, Rick Stevens <ricks(a)nerd.com> wrote:
GMS S wrote:
I use this sort of thing with a 500GB USB drive (automounted at
"/media/500GB-Drive" by Gnome):
#!/bin/bash
# Back up system to a specific directory given on the command
# line or a default based on today's date. Excludes the /proc,
# /sys, /dev and /media directories
MYHOST=`hostname`
TODAY=`date +%d-%b-%Y`
if [ $# -lt 1 ]; then
TGT="/media/500GB-Drive/$MYHOST-BackUp-$TODAY"
else
TGT=$1
fi
rsync -avXA --exclude-from=/etc/skipdirs.rsync / $TGT
with /etc/skipdirs.rsync containing:
[...]
I use an extra level of complexity on top of this approach: I hard link
the previous backup directory to the new date, then rsync to the new
date. This makes the cost-per-backup just the incremental cost of
changed files; unchanged files are thus hardlinked from the previous
backup.
Code here:
http://www.cskk.ezoshosting.com/cs/css/bin/histbackup
Then:
mkdir -p /media/500GB-Drive/backups
histbackup -x / /media/500GB-Drive/backups -X
Histbackup automatically honours a .hbinclude file in the
backup area as an '--include-from' option, so you'd set up
/media/500GB-Drive/backups/.hbinclude as required.
There's a bunch of similar rsync-based backup scripts on the web for
this purpose.
Cheers,
--
Cameron Simpson <cs(a)zip.com.au> DoD#743
http://www.cskk.ezoshosting.com/cs/
There's a fine line between cleverness and stupidity.
- Nigel Tufnel, _Spinal Tap_