56 行
1.0 KiB
Bash
56 行
1.0 KiB
Bash
#!/bin/sh
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# 用法：./diff_zip_sh.sh zip1.zip zip2.zip diff.zip
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usage() {
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echo "用法: $0 <zip1> <zip2> <diff.zip>"
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exit 1
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}
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[ "$#" -eq 3 ] || usage
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zip1=$1
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zip2=$2
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diffzip=$3
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# 检查文件
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for f in "$zip1" "$zip2"; do
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[ -f "$f" ] || { echo "文件不存在: $f"; exit 1; }
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done
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# 临时目录
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tmp=$(mktemp -d)
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trap 'rm -rf "$tmp"' EXIT
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tmp1=$tmp/1
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tmp2=$tmp/2
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tmp3=$tmp/3
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mkdir -p "$tmp1" "$tmp2" "$tmp3"
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# 解压
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unzip -q "$zip1" -d "$tmp1"
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unzip -q "$zip2" -d "$tmp2"
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# 递归对比
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find "$tmp2" -type f | while IFS= read -r f2; do
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rel=${f2#$tmp2/}
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f1=$tmp1/$rel
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if [ -f "$f1" ] && cmp -s "$f1" "$f2"; then
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continue # 内容相同，跳过
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fi
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dest=$tmp3/$rel
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mkdir -p "$(dirname "$dest")"
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cp "$f2" "$dest"
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done
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# 无差异
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[ -z "$(find "$tmp3" -type f 2>/dev/null)" ] && {
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echo "两个 ZIP 内容完全一致，无需输出。"
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exit 0
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}
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# 打包
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(cd "$tmp3" && zip -qr ../out.zip .)
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mv "$tmp/out.zip" "$diffzip"
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echo "✅ 差异文件已保存到 $diffzip"
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