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Browse files- ReachQA.tar.gz.md5 +3 -0
- ReachQA.tar.gz.part.aa +3 -0
- merge.sh +31 -0
- split.sh +42 -0
ReachQA.tar.gz.md5
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version https://git-lfs.github.com/spec/v1
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oid sha256:bf7fce6f55d3af5fb678853eb44c0ef1cadf6d687a1790452d06ff9cfcfbc7b0
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size 82
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ReachQA.tar.gz.part.aa
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version https://git-lfs.github.com/spec/v1
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oid sha256:378c3ec4f0e6df5dfa439ba400f94d4e2d060cc48a90ce4075137edceff2cd90
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size 37757519635
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merge.sh
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#!/bin/bash
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# 用法: bash merge_parts.sh /path/to/your/file.tar.gz
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# 功能: 将 split_into_three.sh 生成的分片合并回原始文件并校验
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set -euo pipefail
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FILE="$1"
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# 校验分片是否存在
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PREFIX="${FILE}.part."
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if ! ls ${PREFIX}* 1>/dev/null 2>&1; then
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echo "❌ 未找到分片文件: ${PREFIX}*"
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exit 1
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fi
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# 合并
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OUTPUT="${FILE}.recovered"
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echo "🔄 正在合并 ${PREFIX}* 到 ${OUTPUT} ..."
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cat ${PREFIX}* > "$OUTPUT"
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echo "✅ 合并完成: $OUTPUT"
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# 校验
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if [ -f "${FILE}.md5" ]; then
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echo "🔑 检查 MD5 ..."
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md5sum -c "${FILE}.md5" --quiet && \
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echo "✅ 校验通过,合并文件与原始文件一致" || \
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echo "❌ 校验失败,请检查分片是否完整"
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else
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echo "⚠️ 未找到 ${FILE}.md5,跳过 MD5 校验"
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echo "👉 你可以手动运行: md5sum $OUTPUT"
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fi
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split.sh
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#!/bin/bash
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# 用法: bash split_into_three.sh /path/to/your/file
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# 功能: 将一个大文件均匀分成三份,并生成合并与校验说明
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set -euo pipefail
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FILE="$1"
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if [ ! -f "$FILE" ]; then
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echo "❌ 文件不存在: $FILE"
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exit 1
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fi
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# 获取文件大小(字节)
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SIZE=$(stat -c%s "$FILE")
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# 计算每份的大小 (向上取整)
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PART_SIZE=$(( (SIZE + 2) / 3 ))
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echo "📦 文件: $FILE"
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echo "🔢 总大小: $SIZE 字节"
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echo "✂️ 每份大小: $PART_SIZE 字节 (约 $(($PART_SIZE/1024/1024/1024)) GB)"
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# 切分
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PREFIX="${FILE}.part."
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split -b $PART_SIZE "$FILE" "$PREFIX"
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echo "✅ 已完成切分,生成的文件有:"
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ls -lh ${PREFIX}*
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# 生成校验和文件
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echo "🔑 正在生成 MD5 校验码..."
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md5sum "$FILE" > "${FILE}.md5"
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echo "👉 原始文件 MD5 校验保存在: ${FILE}.md5"
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# 提示合并方法
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echo ""
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echo "📝 使用以下命令合并:"
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echo "cat ${PREFIX}* > ${FILE}.recovered"
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echo ""
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echo "然后验证 MD5:"
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echo "md5sum -c ${FILE}.md5"
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