actually, just use cp, not rsync

setup-node-ubuntu.bash

@@ -71,15 +71,10 @@ if [ -n "${NODEJS_VER}" ]; then
   mv ${NODEJS_UNTAR}/${NODEJS_NAME}-${NODEJS_VER}-linux-${ARCH}/* ${NODEJS_UNTAR}/
   rm -rf ${NODEJS_UNTAR}/${NODEJS_NAME}-${NODEJS_VER}-linux-${ARCH} # clean up the temporary unzip folder
   rm ${NODEJS_UNTAR}/{LICENSE,CHANGELOG.md,README.md}
-  if [ -n "$(command -v rsync 2>/dev/null | grep rsync)" ]; then
-    echo $sudo_cmd rsync -a "${NODEJS_UNTAR}/" "$node_install_path/"
-    rsync -a "${NODEJS_UNTAR}/" "$node_install_path/" || $sudo_cmd rsync -a "${NODEJS_UNTAR}/" "$node_install_path/"
-  else
-    echo $sudo_cmd cp -a "${NODEJS_UNTAR}/*" "$node_install_path/"
-    cp -a "${NODEJS_UNTAR}"/* "$node_install_path/" || $sudo_cmd cp -a "${NODEJS_UNTAR}"/* "$node_install_path/"
-  fi
+  echo $sudo_cmd cp -PR "${NODEJS_UNTAR}/*" "$node_install_path/"
+  cp -PR "${NODEJS_UNTAR}"/* "$node_install_path/" || $sudo_cmd cp -PR "${NODEJS_UNTAR}"/* "$node_install_path/"
   rm -rf "${NODEJS_UNTAR}"
 
   chown -R $(whoami) "$node_install_path/lib/node_modules/" || $sudo_cmd chown -R $(whoami) "$node_install_path/lib/node_modules/"
   chown $(whoami) ""$node_install_path"/bin/" || $sudo_cmd chown $(whoami) ""$node_install_path"/bin/"
-fi
+fi