Bash Backup Script |
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Using the script and files below, you can backup selected directories and files to a location
You can also have the backup log placed somewhere for your webserver to show the logs
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config.txt - this stores the configuration for the script
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##############################################################################
# Author: Ahbaid Gaffoor, OCPdba.Net
# File: config.txt
# Date: Sunday 24th NOvember 2002
# Use: Configuration for backup.sh
##############################################################################
# The target directory for backups
TARGET=/mnt/n/winbox/linuxshare
# Web Server Logging
WEBSERVER=Y
WEBDIR=/var/backuplogs
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candidates.txt - this stores the directories and files to be backed up
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##############################################################################
# Author: Ahbaid Gaffoor, OCPdba.Net
# File: candidates.txt
# Date: Sunday 24th NOvember 2002
# Use: Directories and files to be backed up by backup.sh
##############################################################################
# Usage:
# ======
# d directory
# f file
# Any other start character causes the line to be ignored
# ===========
# Directories
# ===========
# web logs
d /var/log/httpd
# scripts
d /root/backup_scripts
# backup logs
d /var/backuplogs
# =====
# Files
# =====
# website
f /etc/httpd/httpd.conf
f /etc/httpd/vhosts.conf
f /etc/httpd/default.conf
# system
f /var/log/messages
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root.crontab - Sample crontab for root that runs the script at 3:00am daily
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##############################################################################
# Author: Ahbaid Gaffoor, OCPdba.Net
# File: root.crontab
# Date: Sunday 24th NOvember 2002
# Use: crontab for backup.sh
# To submit: "crontab root.crontab"
##############################################################################
# ------
# Notes:
# ------
#
# Entry Format: minute, hour, day of month, month, day of week, command
#
# 0 is Sunday
# 1 is Monday
# 2 is Tuesday
# 3 is Wednesday
# 4 is Thursday
# 5 is Firday
# 6 is Saturday
#
# minute, hour, day of month, month, day of week, command
# Sunday = 0
#
# backup.sh - Backup directories and files
0 3 * * * /root/backup_scripts/backup.sh
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backup.sh - The backup script
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#!/bin/bash
##############################################################################
# Author: Ahbaid Gaffoor, OCPdba.Net
# File: backup.sh
# Date: Sunday 24th NOvember 2002
# Use: Backup directories and files
#
# Notes: The CONFIG_FILE allows specification of an optional
# webserver directory for placing backup logs
##############################################################################
# Configuration files
export CONFIG_PATH=/root/backup_scripts
export CONFIG_FILE=$CONFIG_PATH/config.txt
export CANDIDATE_FILE=$CONFIG_PATH/candidates.txt
# Target Directory
export TIMESTAMP=`date +%Y%m%d-%H%M%S`
export TARGETDIR=`cat $CONFIG_FILE | grep -v ^# | grep ^TARGET | awk -F= '{print $2}'`"/"$TIMESTAMP
# Target Log
export TARGETLOG=$TARGETDIR"/backup.log"
# Webserver logging info.
export WEBSERVER=`cat $CONFIG_FILE | grep -v ^# | grep ^WEBSERVER | awk -F= '{print $2}'`
export WEBDIR=`cat $CONFIG_FILE | grep -v ^# | grep ^WEBDIR | awk -F= '{print $2}'`
export WEBLOG=$WEBDIR"/backup-"$TIMESTAMP".txt"
# Create Target Directory if it does not exist
if [ ! -d ${TARGETDIR} ]; then
mkdir -p $TARGETDIR
fi
# Usage function
function usage {
echo
echo "backup.sh"
echo " - See: $CANDIDATE_FILE for entries"
echo
}
# Header function
function header {
echo "================================================================================="
echo "Backup Log for `date` on `hostname`"
echo "================================================================================="
echo "Config file: $CONFIG_FILE"
echo "Candidate file: $CANDIDATE_FILE"
echo "Timestamp is: $TIMESTAMP"
if test "$WEBSERVER" = "Y" ; then
echo "Webserver logging: ON"
echo "Webserver log to $WEBDIR"
else
echo "Webserver logging: OFF"
fi
}
# Footer function
function footer {
echo
echo "================================================================================="
echo "Backup Log ended at `date`"
echo "================================================================================="
}
# List Candidates function
function list_candidates {
echo
echo "================================================================================="
echo "Backup Candidates:"
echo "================================================================================="
cat $CANDIDATE_FILE
echo "================================================================================="
}
# Directory backup function
function backup_directories {
echo
echo "#################################################################################"
echo "Backing up directories...."
echo "#################################################################################"
echo
for dir in `cat $CANDIDATE_FILE | grep ^d | awk '{print $2}'`
do
export SRCDIR=$dir
export TARFILE=$TARGETDIR"/"`echo $dir | awk -F/ '{print $NF}'`".tar"
if [ ! -f ${TARFILE} ]; then
echo
echo "---------------------------------------------------------------------------------"
echo "Creating $TARFILE for $dir"
echo "---------------------------------------------------------------------------------"
tar -cPvf $TARFILE $dir
else
echo "---------------------------------------------------------------------------------"
echo "Adding to existing $TARFILE for $dir"
echo "---------------------------------------------------------------------------------"
tar -rPvf $TARFILE $dir
fi
done
}
# File backup function
function backup_files {
echo
echo "#################################################################################"
echo "Backing up files...."
echo "#################################################################################"
echo
export TARFILE=$TARGETDIR"/files.tar"
echo "---------------------------------------------------------------------------------"
echo "Creating $TARFILE"
echo "---------------------------------------------------------------------------------"
for fn in `cat $CANDIDATE_FILE | grep ^f | awk '{print $2}'`
do
if [ ! -f ${TARFILE} ]; then
tar -cPvf $TARFILE $fn
else
tar -rPvf $TARFILE $fn
fi
done
}
# Compress tar files
function compress_files {
echo
echo "#################################################################################"
echo "Compressing tar files...."
echo "#################################################################################"
echo
for tf in `ls $TARGETDIR/*.tar`
do
echo "---------------------------------------------------------------------------------"
echo "Compressing $tf"
gzip $tf
ls -al $tf.gz | awk '{print $5" "$6" "$7" "$8" "$9}'
echo "---------------------------------------------------------------------------------"
echo
done
}
#
# Main call to functions
#
if [ $# -ne 0 ]; then
usage
else
header 1>>$TARGETLOG 2>>$TARGETLOG
list_candidates 1>>$TARGETLOG 2>>$TARGETLOG
backup_files 1>>$TARGETLOG 2>>$TARGETLOG
backup_directories 1>>$TARGETLOG 2>>$TARGETLOG
compress_files 1>>$TARGETLOG 2>>$TARGETLOG
# Optional webserver directory
if test "$WEBSERVER" = "Y" ; then
echo 1>>$TARGETLOG 2>>$TARGETLOG
echo "Copying log to $WEBLOG" 1>>$TARGETLOG 2>>$TARGETLOG
cp $TARGETLOG $WEBLOG
fi
footer 1>>$TARGETLOG 2>>$TARGETLOG
fi
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