Install Nextcloud 13 on Debian 9

install-mysql.sh

apt-get install mysql-server
sed -i "s/^\(bind-address.*=\).*/\1 0.0.0.0/" /etc/mysql/mariadb.conf.d/50-server.cnf
service mysql restart
mysql -e "create database nextcloud;"
mysql -e "CREATE USER nextcloud@'%' IDENTIFIED BY 'mypassword';"
mysql -e "GRANT ALL PRIVILEGES ON nextcloud.* to 'nextcloud'@'%';"

install-nextcloud.sh

apt-get install wget nginx php7.0-fpm unzip
wget -C https://download.nextcloud.com/server/releases/nextcloud-13.0.0.zip
unzip nextcloud-13.0.0.zip
mv nextcloud /var/www/
sed -i "s/\(.*\)#location.*\.php.*/\1location ~ .php {/" /etc/nginx/sites-enabled/default
sed -i "s/\(.*\)#\(.*\)\(include snippets\/fastcgi-php.conf;\)/\1\2\3/" /etc/nginx/sites-enabled/default
sed -i "s/\(.*\)#\(.*\)\(fastcgi_pass unix:\/var\/run\/php\/php7.0-fpm.sock;\)/\1\2\3/" /etc/nginx/sites-enabled/default
sed -i "s/index.nginx-debian.html;/index.nginx-debian.html index.php;/" /etc/nginx/sites-enabled/default
sed -i "s/root \/var\/www\/html;/root \/var\/www\/nextcloud;/" /etc/nginx/sites-enabled/default
cat /etc/nginx/sites-enabled/default | tr '\n' '\r' | sed -e 's/\(fastcgi_pass [^}]*\r[^}]*\)#}\r/\1}\r/'  | tr '\r' '\n' > /etc/nginx/sites-enabled/default1
rm /etc/nginx/sites-enabled/default && mv /etc/nginx/sites-enabled/default1 /etc/nginx/sites-enabled/default
chown -R www-data: /var/www/nextcloud
apt-get install php-mysql php-zip php-gd php-json php-mysql php-curl php-mbstring php-intl php-mcrypt php-imagick php-xml php-zip 
service nginx restart

install-onlyoffice.sh

apt-get install -y wget gnupg curl sudo
echo "deb http://archive.ubuntu.com/ubuntu precise main universe multiverse" | tee -a /etc/apt/sources.list 
curl -sL https://deb.nodesource.com/setup_6.x |  bash -
apt-get install postgresql
sudo -i -u postgres psql -c "CREATE DATABASE onlyoffice;"
sudo -i -u postgres psql -c "CREATE USER onlyoffice WITH password 'onlyoffice';"
sudo -i -u postgres psql -c "GRANT ALL privileges ON DATABASE onlyoffice TO onlyoffice;"
apt-get install redis-server
apt-get install rabbitmq-server
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys CB2DE8E5
echo "deb http://download.onlyoffice.com/repo/debian squeeze main" | tee /etc/apt/sources.list.d/onlyoffice.list
apt-get update
apt-get install onlyoffice-documentserver