download() stop script if 404

init.sh

@@ -118,6 +118,9 @@ download (){
 # $2 : url
 # $3 : 1 if abort download if file exist
 printf "Downloading %s :    " "$1"
+http_response=$(wget --spider --server-response $2/$1 2>&1 | grep HTTP/ | tail -1 |  awk ' { printf $2 }')
+if [ $http_response -eq 200 ]
+then
     wget -c --progress=dot $2/$1 2>&1 | grep --line-buffered "[0-9]\{1,3\}%" -o | awk '{printf ("\b\b\b\b%4s", $1)}'
     if [ $? -eq 0 ]
     then
@@ -126,6 +129,10 @@ download (){
         printf " error, exiting.\n"
         exit 1
     fi
+else
+    printf "Error 404 : file not found, exiting\n"
+    exit 1
+fi
 }
 
 process_conf_file (){