example/rcnn/script/get_coco.sh

#!/usr/bin/env bash

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# to you under the Apache License, Version 2.0 (the
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#
#   http://www.apache.org/licenses/LICENSE-2.0
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# make a data folder
if ! [ -e data ]
then
    mkdir data
fi

pushd data

# download images
mkdir images
declare -a filenames=("train2014" "val2014")
for i in "${filenames[@]}"
do
    if ! [ -e $i.zip ]
    then
        echo $i.zip "not found, downloading"
        wget http://msvocds.blob.core.windows.net/coco2014/$i.zip
    fi
    unzip $i.zip
    echo $i/*.jpg | mv -t images
    rm -r $i
done

# download annotations
anno="instances_train-val2014.zip"
if ! [ -e $anno ]
then
    echo $anno "not found, downloading"
    wget http://msvocds.blob.core.windows.net/annotations-1-0-3/$anno
fi
unzip $anno

# the result is coco/images/ coco/annotations/
mkdir coco
mv images coco
mv annotations coco

popd