Random backup script for various files on a server.

backup_files.sh

#!/bin/bash

USER_OUTPUT_FOLDER="/home/hogehoge/backups/"
USER_WEBROOT="/var/www/"
USER_APACHE="/etc/apache2/"
USER_MUNIN="/etc/munin/"
USER_PHP="/etc/php5/"

DATE_PREFIX=`date +"%Y-%m-%d_%H-%M_"`

TAR_SETTINGS="-cvpjf"
WEBROOT="webroot.tar.bz2"
APACHE="apache.tar.bz2"
MUNIN="munin.tar.bz2"
PHP="php.tar.bz2"

WEBROOT_OUT="${USER_OUTPUT_FOLDER}${DATE_PREFIX}${WEBROOT}"
APACHE_OUT="${USER_OUTPUT_FOLDER}${DATE_PREFIX}${APACHE}"
MUNIN_OUT="${USER_OUTPUT_FOLDER}${DATE_PREFIX}${MUNIN}"
PHP_OUT="${USER_OUTPUT_FOLDER}${DATE_PREFIX}${PHP}"

LOGFILE="${USER_OUTPUT_FOLDER}${DATE_PREFIX}log.txt"

COL_R='\E[31m'
COL_G='\E[32m'
COL_Y='\E[33m'
COL_RESET='\E[0m'

info()
{
message=${1}
    echo -e "[${COL_G}INFO${COL_RESET}] ${message}"
    return
}

warning()
{
message=${1}
    echo -e "[${COL_Y}WARNING${COL_RESET}] ${message}"
    return
}

error()
{
message=${1}
    echo -e "[${COL_R}ERROR${COL_RESET}] ${message}"
    return
}

check_output_folder()
{
if [ ! -d "${USER_OUTPUT_FOLDER}" ]; then
    error "Output folder ${USER_OUTPUT_FOLDER} not found!"
    exit 1
else
    info "Output folder ${USER_OUTPUT_FOLDER} found."
    return
fi
}

check_if_file_exists()
{
file=${1}
if [ -f "${1}" ]; then
    error "Output file ${file} already exists!"
    exit 1
else
    info "Output file ${file} does not already exist."
    return
fi
}

backup()
{
file=${1}
out=${2}
    tar "${TAR_SETTINGS}" "${out}" "${file}" 2>&1 >> "${LOGFILE}"
    RETVAL=$?
    if [ ! "${RETVAL}" -eq 0 ]; then
        error "Tarring of ${file} failed!"
        exit 1
    else
        info "Tarring of ${file} succeeded."
        return
    fi
}

info "Starting backup script."
info "Checking stuff..."
check_output_folder
echo ""
info "Attempting to back up webroot."
check_if_file_exists "${WEBROOT_OUT}"
backup "${USER_WEBROOT}" "${WEBROOT_OUT}"
echo ""
info "Attempting to back up Apache settings."
check_if_file_exists "${APACHE_OUT}"
backup "${USER_APACHE}" "${APACHE_OUT}"
echo ""
info "Attempting to back up Munin settings."
check_if_file_exists "${MUNIN_OUT}"
backup "${USER_MUNIN}" "${MUNIN_OUT}"
echo ""
info "Attempting to back up PHP settings."
check_if_file_exists "${PHP_OUT}"
backup "${USER_PHP}" "${PHP_OUT}"
echo ""
echo ""
info "Script finished successfully, all OK."