fix /etc/skel/.bashrc missing

lib/initiate.bash

@@ -28,7 +28,7 @@ function install_required_packages {
 function fix_users_bashrc {
   # for new users
   if ! cmp -s /etc/skel/.bashrc "$MIAOU_BASH_DIR"/etc/skel/.bashrc; then
-    sudo mv /etc/skel/.bashrc /etc/skel/.bashrc.ORIGINAL
+    [[ -f /etc/skel/.bashrc ]] && sudo mv /etc/skel/.bashrc /etc/skel/.bashrc.ORIGINAL
     sudo ln -sf "$MIAOU_BASH_DIR"/etc/skel/.bashrc /etc/skel/.bashrc
 
     # for pre-existant users