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Old 05-18-2008, 10:07 AM   #1
gerben12
LQ Newbie
 
Registered: Oct 2007
Distribution: SuSE, Redhat, Debian
Posts: 25

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Simple rsync script for backing up (multiple) pc's to a usb-disk


Hi all,

I've searched all over the place for a simple backup script that would backup my linux pc's to a usb-disk. Finally I've made something myself.

What you will need:
* A usb disk,connected to your main pc/server
* An ssh connection with "authorized_keys" to your other pc's, or another way that your other pc's are connected to your server.
* The rsync program

After that you will need the two scripts below.
Put it in /etc/cron.daily or /etc/cron.weekly and your basically done.
Of course it could use improvement as far as filtering goes.

What you will get from the first script:
On your usb disk you wil get in your backup-directory the names of the week with the hostname of your pc and the dirs you have selected to backup.

From the second script you will get in your main backup dir a "Static" directory in which you put the things that dont need to be backup up so often, only once in a while.

In the script edit the variables at the beginning to your needs.

Script 1 will copy the basic system files to your USB disk
********CUT HERE SCRIPT 1****************

#!/bin/bash

# Set variables
DST=/Backup # Destination dir
USBDISK=/dev/sdb1 # Your USB disk
MOUNTPOINT=/Backup # Mountpoint of USB disk
DAY="`date +%A`" # Dayname full
HOSTS="pc1 pc2 pc3" # Check these hosts
# Backup these dirs from the hosts:
DIR="/etc /home /root /usr/local/bin /var/lib/rpm /var/spool/cron/tabs /srv/www/htdocs"

# Start backup
# Check if mounted usb drive
mount | grep $USBDISK | grep $MOUNTPOINT 2>&1 > /dev/null || \
( echo "ERROR! USB disk not mounted!" ; exit 1 )

# Rotate the hosts
for host in $HOSTS
do
# Make the backup dir
[ -d $DST/$DAY/$host ] || mkdir -p $DST/$DAY/$host
for dir in $DIR
do
if [ "$host" = "`uname -n`" ]
then
# Local backup has no host to copy from
rsync -aC --delete $dir $DST/$DAY/$host
else
# Remote backup has a host to copy from
rsync -aC --delete $host:$dir $DST/$DAY/$host
fi
done
done

********CUT HERE SCRIPT 1****************

Script 2 will copy the static files to your USB disk
Once again, edit the variables in the beginning to your needs.
And for the stactic components edit manually the dirs you want to backup. (Still need to tidy that)
Mind you though, that I assume no two dir names are the same for that Static components, so they will not overwrite eachother

********CUT HERE SCRIPT 2****************
#!/bin/bash

DST=/Backup/Static # Destination dir
USBDISK=/dev/sdb1 # Your USB disk
MOUNTPOINT=/Backup # Mountpoint of USB disk

# Check if mounted usb drive
mount | grep $USBDISK | grep $MOUNTPOINT 2>&1 > /dev/null || \
( echo "ERROR! USB disk not mounted!" ; exit 1 )

# Make the backup dir
[ -d $DST ] || mkdir -p $DST

# RSYNC the static components
# Edit these to your own dirs
rsync -aC /My/Videos $DST
rsync -aC /My/Mysic $DST
rsync -aC /My Games $DST


# Remote hosts
rsync -aC pc2:/Games/UT2004 $DST

********CUT HERE SCRIPT 2****************

Have fun
 
  


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