test for apt-get

user.sh

@@ -9,6 +9,10 @@ chown "$_user": /home/"$_user"/.ssh/authorized_keys
 passwd -d "$_user"
 chage -d 0 "$_user"
 
-# TODO test apt-get is used
+if command -v apt-get ; then
   apt-get update && apt-get -y upgrade && apt-get -y install sudo
+else
+  echo "Error - no package installer found."
+fi
+
 # TODO ensure group sudo is allowed sudo