写一个清理化本地大文件分段缓存的脚本
#!/bin/bash
url=$1 # 获取命令行输入的 URL
port=$2 # 获取命令行输入的端口（可选）
if [[ -z "$url" ]]; then
echo "Usage: $0 <url> [port]"
exit 1
fi
# 提取 URL 路径和查询字符串
url_path=$(echo $url | cut -d '/' -f 4-)
# 检查是否有端口号传入
if [[ -z "$port" ]]; then
host="http://0" # 默认端口80
else
host="http://0:$port" # 使用指定的端口
fi
# 获取总长度
content_length=$(curl -sI $host/$url_path | grep -i Content-Length | awk -F ": " '{print $2}' | tr -d '\r')
if [[ -z "$content_length" ]]; then
echo "Failed to retrieve Content-Length for the URL."
exit 1
fi
# 设置分段大小为 10MB (即 10485760 bytes)
segment_size=10485760
# 计算需要的总迭代次数
let total_segments=($content_length+$segment_size-1)/$segment_size
success_count=0
not_found_count=0
fail_count=0
echo "Starting cache purge for $host/$url_path"
for (( i=0; i<$total_segments; i++ ))
do
start=$(($i*$segment_size))
end=$(($start+$segment_size-1))
if [[ $end -gt $content_length ]]; then
end=$content_length
fi
range="$start-$end"
# 发送 PURGE 请求到本地
response=$(curl -s -o /dev/null -w "%{http_code}" -X PURGE -r $range "$host/$url_path")
# 进度条显示
percent=$((($i+1)*100/$total_segments))
printf "\rProgress: [%-50s] %d%%" $(printf "%-${percent}s" | tr ' ' '#') $percent
# 更新统计计数
case $response in
200) let success_count++ ;;
404) let not_found_count++ ;;
*) let fail_count++ ;;
esac
done
echo -e "\nCache purge completed for $host/$url_path."
echo "Summary:"
echo "Successful purges: $success_count"
echo "Not found (no cache): $not_found_count"
echo "Failed requests: $fail_count"
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