WordPress backup script: A bash script to compress and backup a complete wordpress site including the database

wp-backup-script.sh

#!/usr/bin/env bash
# wp-backup-script.sh - Creates a complete, compressed backup of your WordPress database and files. You can then transfer it to your preferred location (local disk, cloud backup storage etc)

# Author: Praveen Palanisamy | Twitter: @PraveenPsamy | GitHub: https://github.com/praveen-palanisamy| Website: https://praveenp.com

# Dependencies: mailutils

# 0. Change the variables below to suit your environment
WP_FOLDER="$HOME/public_html/"  # Folder where your wordpress root installation is
BACKUP_FOLDER="$HOME/backups"   # Folder where you want to store the backups
EMAIL="user@domain.com"      # Email ID where you want to receive a confirmation email
DATE=$(date +%Y-%m-%d)
LOG="${BACKUP_FOLDER}/wp-backup.log"

echo "WordPress Backup Log ${DATE}" > ${LOG}
echo "" >> ${LOG}

if [ -z ${WP_FOLDER} ] || [ -z ${BACKUP_FOLDER} ]; then
	echo "Cannot find ${WP_Folder} and/or ${BACKUP_FOLDER}" >> ${LOG}
	exit 1
fi
 
# 1. Check if WP_FOLDER is a valid wordpress installation
WP_CONFIG="${WP_FOLDER}/wp-config.php"
 
if ! test -f ${WP_CONFIG}; then 
	echo "ERROR: Cannot detect WordPress installation here... Exiting" >> ${LOG}
	exit 1
fi
 
# 2. Get the wordpress database  information
DB_NAME=$(grep -E "^define\('DB_NAME'" ${WP_CONFIG} | cut -d"'" -f4)
DB_USER=$(grep -E "^define\('DB_USER'" ${WP_CONFIG} | cut -d"'" -f4)
DB_PASSWORD=$(grep -E "^define\('DB_PASSWORD'" ${WP_CONFIG} | cut -d"'" -f4)
DB_HOST=$(grep -E "^define\('DB_HOST'" ${WP_CONFIG} | cut -d"'" -f4)
 
# 3. Compress and backup the  WordPress DB and the complete website files
mysqldump ${DB_NAME} -u${DB_USER} -p${DB_PASSWORD} -h${DB_HOST} | gzip > ${BACKUP_FOLDER}/wp_db-${DATE}.gz;
 
if [ $? -ne 0 ]; then
	echo "ERROR: Couldn't dump your WordPress database. Check your wp-config credentials and permissions" >> ${LOG}
	exit 1
fi
 
tar -zcf ${BACKUP_FOLDER}/wp_files-${DATE}.tar.gz  ${WP_FOLDER}/  >/dev/null 2>&1
 
if [ $? -ne 0 ]; then
	echo "ERROR: Couldn't backup your WordPress directory..." >> ${LOG}
	exit 1
fi

echo "Website Backup Completed Successfully" >> ${LOG}
echo "" >> ${LOG}
echo "WordPress site file list with size (depth=2): \n" >> ${LOG}
echo "$(du -h --max-depth 2 ${WP_FOLDER})" >> ${LOG}
echo "" >> ${LOG}
echo "Backup file information: \n" >> ${LOG}
echo "$(du -h ${BACKUP_FOLDER})" >> ${LOG}
echo "" >> ${LOG}

# email log
cat ${LOG} | mail -s "WordPress website Backup Successful" ${EMAIL}