Continue getting a partially-downloaded file.

Move second try after base_url_change into if-statement.

research/inception/inception/data/download_imagenet.sh

@@ -55,13 +55,12 @@ BASE_URL="http://www.image-net.org/challenges/LSVRC/2012/nonpub"
 BOUNDING_BOX_ANNOTATIONS="${BASE_URL}/ILSVRC2012_bbox_train_v2.tar.gz"
 BBOX_TAR_BALL="${BBOX_DIR}/annotations.tar.gz"
 echo "Downloading bounding box annotations."
-wget "${BOUNDING_BOX_ANNOTATIONS}" -O "${BBOX_TAR_BALL}" || BASE_URL_CHANGE=1
+wget -c "${BOUNDING_BOX_ANNOTATIONS}" -O "${BBOX_TAR_BALL}" || BASE_URL_CHANGE=1
 if [ $BASE_URL_CHANGE ]; then
   BASE_URL="http://www.image-net.org/challenges/LSVRC/2012/nnoupb"
   BOUNDING_BOX_ANNOTATIONS="${BASE_URL}/ILSVRC2012_bbox_train_v2.tar.gz"
-  BBOX_TAR_BALL="${BBOX_DIR}/annotations.tar.gz"
+  wget -c "${BOUNDING_BOX_ANNOTATIONS}" -O "${BBOX_TAR_BALL}"
 fi
-wget "${BOUNDING_BOX_ANNOTATIONS}" -O "${BBOX_TAR_BALL}"
 echo "Uncompressing bounding box annotations ..."
 tar xzf "${BBOX_TAR_BALL}" -C "${BBOX_DIR}"