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@@ -110,17 +110,17 @@ list_usb_disks() {
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part_label=$(lsblk -o LABEL -n "$dev" | tr -d '[:space:]')
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part_mp=$(lsblk -o MOUNTPOINT -n "$dev" | tr -d '[:space:]')
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- # 解析 SIZE
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- local unit val
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- unit="${part_size_str: -1}"
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- val="${part_size_str%?}"
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- case "$unit" in
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- T) part_size_bytes=$((val * 1099511627776)) ;;
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- G) part_size_bytes=$((val * 1073741824)) ;;
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- M) part_size_bytes=$((val * 1048576)) ;;
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- K) part_size_bytes=$((val * 1024)) ;;
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- *) part_size_bytes=$val ;;
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- esac
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+ # 解析 SIZE (用 awk 处理浮点数, 如 "57.3G")
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+ part_size_bytes=$(awk -v s="$part_size_str" '
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+ BEGIN {
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+ u = substr(s, length(s))
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+ v = substr(s, 1, length(s)-1) + 0
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+ if (u == "T") printf "%d", v * 1099511627776
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+ else if (u == "G") printf "%d", v * 1073741824
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+ else if (u == "M") printf "%d", v * 1048576
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+ else if (u == "K") printf "%d", v * 1024
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+ else printf "%d", v
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+ }')
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if [[ "$part_size_bytes" -gt "$best_size_bytes" ]]; then
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best_size_bytes=$part_size_bytes
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