Usage: 1. chmod +x backup-wp.sh 2. ./backup-wp.sh public_html/ backup/ first OR curl -sL https://gist.github.com/themkvz/ec1c24f6f369d91a09bd2cde6977c8d9/raw/backup-wp.sh | bash -s public_html/ backup/ first

backup-wp.sh

#!/bin/bash
function usage {
    echo  "Usage: 
	$0 [wordpress_site] [backup_path] [name]

	e.g.: 
	bash backup-wp.sh public_html backup name

	wordpress_site - path to your  WordPress site for backup it (e.g. /home/admin/web/wordpress.com/public_html )
	backup_path - destination for your backups (e.g. /home/admin/web/wordpress.com/backup
	name - backup name  )
	";
	exit 1
}
if [ $# -lt 3 ]; then usage; fi

wp_src=${1%/}
bcp_dst=${2%/}
bcp_name=${3%/}
file_suf="file_backup"
db_suf="db_backup"

wp_conf="$wp_src"/wp-config.php
if [ ! -f "$wp_conf" ]; then
    echo "
    $wp_src is not wordpress core directory !!!
    "
    usage;
fi

db_pass=`cat "$wp_src"/wp-config.php|grep DB_PASSWORD|awk -F \' '{print $4}'`
db_name=`cat "$wp_src"/wp-config.php|grep DB_NAME|awk -F \' '{print $4}'`
db_user=`cat "$wp_src"/wp-config.php|grep DB_USER|awk -F \' '{print $4}'`
db_pref=`cat "$wp_src"/wp-config.php|grep table_prefix|awk -F \' '{print $2}'`
db_opts="$db_pref"options
echo "Get database name:" "$db_name"
echo "Get database user:" "$db_user"
echo "Get database psw:" "***"

# backup  database
mkdir -p "$bcp_dst"

mysqldump -u$db_user -p$db_pass $db_name|gzip > "$bcp_dst"/"$bcp_name"_"$db_suf".sql.gz
echo "Database \"$db_name\" dumped"

# backup files
tar -czf "$bcp_dst"/"$bcp_name"_"$file_suf".tar.gz -P "$wp_src"
echo "Files backup"

echo "Backup compled"
ls -lh "$bcp_dst"
du -sh "$bcp_dst"