cpp-package/example/get_data.sh

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unameOut="$(uname -s)"
case "${unameOut}" in
    Linux*)     CMD='wget';;
    Darwin*)    CMD='curl -o';;
    CYGWIN*)    CMD='wget';;
    MINGW*)     CMD='wget';;
    *)          CMD=""
esac

if [ ! -d "./data" ]; then
    mkdir data
fi

if [ ! -d "./data/mnist_data" ]; then
  mkdir ./data/mnist_data

  (cd data/mnist_data; $CMD train-images-idx3-ubyte.gz https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/train-images-idx3-ubyte.gz)
  (cd data/mnist_data; $CMD train-labels-idx1-ubyte.gz https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/train-labels-idx1-ubyte.gz)
  (cd data/mnist_data; $CMD t10k-images-idx3-ubyte.gz  https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/t10k-images-idx3-ubyte.gz)
  (cd data/mnist_data; $CMD t10k-labels-idx1-ubyte.gz  https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/t10k-labels-idx1-ubyte.gz)
  (cd data/mnist_data; $CMD mnist_train.csv.gz         http://data.mxnet.io/data/mnist_train.csv.gz)
  (cd data/mnist_data; gzip -d *.gz)
fi