http:https://cocodataset.org/#download
Download COCO 2014
# 指定下载目录，默认： ~/data/
sh data/scripts/coco2014.sh /data/dl/
sh data/scripts/coco2017.sh /data/dl/
Syntax error: end of file unexpected (expecting "then")
vim coco2017.sh
:set fileformat=unix
:wq