bitrix backup script

#!/bin/sh
#http://dev.1c-bitrix.ru/community/blogs/howto/945.php

doc_root=$1
name=$2
if [ -z $doc_root ]; then
    echo Usage: $0 /path/to/document/root [backup_name]
    exit
fi

if [ -z $name ]; then
    name=backup
fi

dbconn=$doc_root/bitrix/php_interface/dbconn.php

readcfg() {
    grep $1 $dbconn | sed 's/.*"\(.*\)".*/\1/'
}

host=`readcfg DBHost`
username=`readcfg DBLogin`
password=`readcfg DBPassword`
database=`readcfg DBName`

utf=`grep 'BX_UTF' $dbconn | grep true`

if [ -z "$utf" ]; then
    charset=cp1251
    else
    charset=utf8
fi

backup_dir=$doc_root/bitrix/backup

if [ ! -e $backup_dir ]; then
    mkdir $backup_dir
fi

cd $doc_root && 
mysqldump -h$host -u$username -p$password --default-character-set=$charset $database > $backup_dir/$name.sql && 
tar -cf $backup_dir/$name.tar $backup_dir/$name.sql &&  
rm $backup_dir/$name.sql &&
tar -rf $backup_dir/$name.tar --exclude '*bitrix/tmp/*' --exclude '*bitrix/updates/*' --exclude '*bitrix/backup/*' --exclude '*bitrix/*cache/*' . && 
gzip -f -9 $backup_dir/$name.tar && 
echo OK && exit
echo Error