Scotech :: Knowledge Base (KB)

In the event you cannot afford a high dollar backup solution, or you just want to augment what you already have, this is a very simplified script for doing full and incremental backups.

#!/bin/bash

## VARIABLES

HOST=`hostname`
FILE="/root/scripts/backups/backups.txt"
DEST="/backups"
ERRORS="/root/scripts/backups/backups.err"

DATETIME=`date`
DATENAME=`date +%a`
DATENUMB=`date +%d`
DATEFULL=`date +%Y%m%d`

## CHECK FOR MOUNT POINT

if [ ! -d $DEST ]
then
  ERROR="$DATEFULL $DEST does not exist, creating"
  echo $ERROR >> $ERRORS
  mkdir -p $DEST
fi

## FULL DUMPS

if [ $DATENUMB == "01" ]
then
  TYPE="Full"

  NAME="home"
  DATA="/home/*"
  ARCH=$DEST/$DATEFULL-$NAME-$HOST-$TYPE.tgz
  tar -cvz -f $ARCH $DATA

  echo $DATETIME >> $FILE
fi

## INCR DUMPS

if [ $DATENUMB != "01" ]
then
  TYPE="Incr"
  LAST=`tail -1 $FILE`

  NAME="home"
  DATA="/home/*"
  ARCH=$DEST/$DATEFULL-$NAME-$HOST-$TYPE.tgz
  tar -N "$LAST" -cvz -f $ARCH $DATA

  echo $DATETIME >> $FILE
fi

Obviously you can adjust the script to perform the full backups whenever you desire (this one is monthly) and you can enter in any number of paths to backup. It would be wise if your destination mount path was from a remote server so its not stored locally.