diff --git a/nextcloud.sh b/nextcloud.sh
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+#!/bin/bash
+## author      : Dryusdan
+## date        : 30/09/2019
+## description : A Nextcloud Update
+## usage       : ./update.sh
+
+## Bash strict mode ####################################
+set -o errexit   # abort on nonzero exitstatus
+set -o nounset   # abort on unbound variable
+set -o pipefail  # don't hide errors within pipes
+
+## Bash color ##########################################
+# Set colors
+RED='\033[0;31m'
+GREEN='\033[00;32m'
+YELLOW='\033[00;33m'
+BLUE='\033[00;34m'
+PURPLE='\033[00;35m'
+CYAN='\033[00;36m'
+LIGHTGRAY='\033[00;37m'
+LRED='\033[01;31m'
+LGREEN='\033[01;32m'
+LYELLOW='\033[01;33m'
+LBLUE='\033[01;34m'
+LPURPLE='\033[01;35m'
+LCYAN='\033[01;36m'
+WHITE='\033[01;37m'
+NC='\033[0m' # No Color
+
+## Logs ################################################
+readonly SCRIPTNAME="$(basename "$0")"
+info()    { echo -e "${LBLUE}[INFO] $* ${NC}"    | logger --tag "${SCRIPTNAME}" --stderr ; }
+warning() { echo -e "${YELLOW}[WARNING] $* ${NC}" | logger --tag "${SCRIPTNAME}" --stderr ; }
+error()   { echo -e "${LRED}[ERROR] $* ${NC}"   | logger --tag "${SCRIPTNAME}" --stderr ; }
+fatal()   { echo -e "${RED}[FATAL] $* ${NC}"   | logger --tag "${SCRIPTNAME}" --stderr ; exit 1 ; }
+########################################################
+
+## Define nextcloud's folder ##########################
+FOLDER="/var/www/cloud_drycat_fr"
+
+## Ask nextcloud ######################################
+read -p "Nextcloud version ? " VERSION
+
+info "Check if require folders exist"
+
+if [ -d "$FOLDER/nextcloud" ]; then
+	warning "Aborded installation exist. Remove nextcloud/ folder"
+	rm -rf $FOLDER/nextcloud || fatal "Error when removing folder. Exiting"
+	rm nextcloud-* || fatal "Error when removing nextcloud-* .zip, .zip.sha256, .zip.asc. Please remove $FOLDER/nextcloud and $FOLDER/nextcloud-* and retry"
+fi
+if [ -d "$FOLDER/www" ]; then
+	info "www/ directory exist, continue"
+	NEW_INSTALLATION=false
+else
+	warning "www/ directory don't exist, creating"
+	mkdir $FOLDER/www || fatal "Error when creating folder. Exiting"
+	NEW_INSTALLATION=true
+fi
+if [ -d "$FOLDER/data" ]; then
+	info "data/ directory exist, continue"
+else
+	warning "data/ directory don't exist, creating"
+	mkdir $FOLDER/data || fatal "Error when creating folder. Exiting"
+	NEW_INSTALLATION=true
+fi
+if [ -d "$FOLDER/config" ]; then
+	info "config/ directory exist, continue"
+else
+	warning "config/ directory don't exist, creating"
+	mkdir $FOLDER/config || fatal "Error when creating folder. Exiting"
+	NEW_INSTALLATION=true
+fi
+if [ -d "$FOLDER/apps" ]; then
+	info "apps/ directory exist, continue"
+else
+	warning "apps/ directory don't exist, creating"
+	mkdir $FOLDER/apps || fatal "Error when creating folder. Exiting"
+	NEW_INSTALLATION=true
+fi
+
+# Download nextcloud
+info "Download Nextcloud $VERSION"
+wget -q https://download.nextcloud.com/server/releases/nextcloud-$VERSION.zip || fatal "Download failed. Please retry"
+if [ ! -f "$FOLDER/nextcloud-$VERSION.zip" ]; then
+	fatal "Download of Nextcloud archive failed. Please retry"
+fi
+
+info "Download sha256 of Nextcloud"
+wget -q https://download.nextcloud.com/server/releases/nextcloud-$VERSION.zip.sha256 || fatal "Download of Nextcloud checksum failed. Please retry"
+if [ ! -f "$FOLDER/nextcloud-$VERSION.zip.sha256" ]; then
+	fatal "Download of Nextcloud checksum failed. Please retry"
+fi
+
+info "Download asc of Nextcloud"
+wget -q https://download.nextcloud.com/server/releases/nextcloud-$VERSION.zip.asc || fatal "Download of Nextcloud signature failed. Please retry"
+if [ ! -f "$FOLDER/nextcloud-$VERSION.zip.asc" ]; then
+	fatal "Download of Nextcloud signature failed. Please retry"
+fi
+
+# Check integrity nextcloud
+info "Check nextcloud integrity"
+sha256sum -c nextcloud-$VERSION.zip.sha256 >/dev/null || fatal "Checksum did not match" 
+gpg -q --verify nextcloud-$VERSION.zip.asc  2>/dev/null|| fatal "Signature is not good" 
+
+info "Start update"
+
+info "Unzip Nextcloud $VERSION"
+unzip -q nextcloud-$VERSION.zip 
+
+if [[ $NEW_INSTALLATION == "false" ]]; then
+	info "Unlink folders that contain the data"
+	unlink www/data
+	unlink www/config
+	unlink www/apps
+
+
+	info "Backuping old installation"
+	tar -zcf "www.$(date '+%Y-%m-%d').tar.gz" www
+
+	info "Removing old installation"
+	rm -rf www/*
+fi
+
+
+
+info "Copying new Nextcloud"
+cp -rf nextcloud/* www/
+rm -rf www/{config,data,apps}
+
+info "Link folders that contain the data into new installation"
+ln -s $FOLDER/data $FOLDER/www/
+ln -s $FOLDER/config $FOLDER/www/
+ln -s $FOLDER/apps $FOLDER/www/
+
+info "Removing archive and temp folder"
+rm -rf nextcloud-$VERSION.zip* ../nextcloud/
+
+info "Setting good permission"
+cd www/
+find -type f -exec chmod 644 {} \; 2> /dev/null; 
+find -type d -exec chmod 755 {} \; 2> /dev/null; 
+
+info "Launch upgrade with occ"
+php occ upgrade
+
+info "Launch integrity check"
+php occ check
+
+read -n1 -p "Would you like scann all file (recommanded) [y,n]" SCAN
+case $SCAN in
+  y|Y) info "Launch files scan" && php console.php files:scan --all ;;
+  n|N) info "Don't launch files scan" ;;
+  *) echo Please use y or n ;;
+esac
+
+###########################################################
+info "exiting ${SCRIPTNAME}"
+exit 0
\ No newline at end of file