use shell to download the nvd cve datasource to save in the local files

nvd_cve_data_download.sh

#!/bin/sh

# 下载nvd的数据源备份

data_source="https://nvd.nist.gov/feeds/json/cve/1.1/"

download_dir="/data/SFTP/data/SDA/release/NVD/"

# file_name="nvdcve-1.1-{}.json.gz"

year=2002
cur_year=$(date +"%Y")

# echo $cur_year

while [[ ${year} -le ${cur_year} ]]; do
    time=$(date "+%Y-%m-%dT%H:%M:%S")
    file_name="nvdcve-1.1-${year}.json.gz"
    download_url=${data_source}${file_name}
    echo "[${time}] start to download ${download_url} to NVD dir ...."
    wget -q --no-check-certificate -O ${download_dir}${file_name} ${download_url}
    time=$(date "+%Y-%m-%dT%H:%M:%S")
    echo "[${time}] end to download ${download_url} to NVD dir"
    year=$[ $year+1 ]
done

recent_file="nvdcve-1.1-recent.json.gz"
modified_file="nvdcve-1.1-modified.json.gz"

for file_name in ${recent_file} ${modified_file}; do
    time=$(date "+%Y-%m-%dT%H:%M:%S")
    download_url=${data_source}${file_name}
    echo "[${time}] start to download ${download_url} to NVD dir ...."
    wget -q --no-check-certificate -O ${download_dir}${file_name} ${download_url}
    time=$(date "+%Y-%m-%dT%H:%M:%S")
    echo "[${time}] end to download ${download_url} to NVD dir"
done