diff --git a/docker/PYROS_DOCKER_UPDATE b/docker/PYROS_DOCKER_UPDATE
index b297d4f..f99f8d9 100755
--- a/docker/PYROS_DOCKER_UPDATE
+++ b/docker/PYROS_DOCKER_UPDATE
@@ -1,20 +1,26 @@
 #!/usr/bin/env bash
 
+# In docker/ folder
+#root_folder=$(pwd 2>&1)
+
 # PRE-CONDITION : pyros container must be running
-root_folder=$(pwd 2>&1)
 # If no container is running Start it
-if ! [ $(docker ps | grep 'pyros' | wc -l) -eq 4 ]
-then
+if ! [ $(docker ps | grep 'pyros' | wc -l) -eq 4 ] ; then
     echo "pyros-db or pyros weren't running, starting them..."
     ./PYROS_DOCKER_START
     #./PYROS_DOCKER_START.bat
 fi
 
-# 1) Update Guitastro
-echo "Updating Guitastro source code"
+# I - Update Guitastro
+echo
+echo "**********************************"
+echo "I - Updating Guitastro source code"
+echo "**********************************"
+echo
+# Go to GuitAstro/ folder
 cd ../vendor/guitastro/
-gitpull_output=$(git pull 2>&1)
 already_uptodate="Déjà à jour."
+gitpull_output=$(git pull 2>&1)
 if [ $? -eq 1 ]; then
     if [[ "$gitpull_output"!="$already_uptodate" ]]; then
         echo "Git pull failed. Error message is:"
@@ -23,6 +29,7 @@ if [ $? -eq 1 ]; then
     fi
 fi
 echo $gitpull_output
+# Check if exists file changed that requires rebuild
 check_files=("docker-compose.yml" "Dockerfile" "install/requirements.in")
 for file in "${check_files[@]}"
 do
@@ -31,10 +38,17 @@ do
         return 1
     fi
 done
+cd - > /dev/null
 
-# 2) Update PyROS
-cd $root_folder
-echo "Updating PyROS source code"
+# II - Update PyROS
+#cd $root_folder
+echo
+echo "**********************************"
+echo "II - Updating PyROS source code"
+echo "**********************************"
+echo
+# Go to PYROS/ folder
+cd ../
 gitpull_output=$(git pull 2>&1)
 if [ $? -eq 1 ]; then
     if [[ "$gitpull_output"!="$already_uptodate" ]]; then
@@ -44,6 +58,7 @@ if [ $? -eq 1 ]; then
     fi
 fi
 echo $gitpull_output
+# Check if exists file changed that requires rebuild
 check_files=("docker-compose.yml" "Dockerfile" "install/requirements.in")
 for file in "${check_files[@]}"
 do
@@ -52,19 +67,35 @@ do
         return 1
     fi
 done
+cd - > /dev/null
+
 
 # TODO : test if git pull worked and if git pull changed dockerfile, requirements.in, docker-compose.yml
 # Tell user to rebuild
 
 
-# 3) Update all observatories with git repo
-for dir in ../../PYROS_OBSERVATORY/* ; do
+# III - Update all observatories with git repo
+echo
+echo "**********************************"
+echo "III - Updating PyROS Observatory(ies)"
+echo "**********************************"
+echo
+# Go to PYROS observatories folder
+cd ../../PYROS_OBSERVATORY/
+for dir in * ; do
+    cd $dir
     if [ -d .git ] ; then 
         echo "Updating observatory $dir source code"
         git pull
     fi
+    cd ../
 done
+cd ../PYROS/docker/
 
-# 3) pyros.py update => update BD + doc + Guitastro requirements
+# IV - pyros.py update => update BD + doc
+echo
+echo "**********************************"
+echo "IV - Updating PyROS Doc & Database"
+echo "**********************************"
+echo
 docker compose exec pyros python3 pyros.py update
-
--
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