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7 lines
226 B
7 lines
226 B
#! /bin/sh
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from=${1}
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to=${2}
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common=`printf '%s\0%s' "${from}" "${to}" | sed 's/\(.*\).*\x0\1.*/\1/' | sed 's@/[^/]*$@/@'`
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prefix=`printf '%s\n' ${from#$common} | sed 's@[^/][^/]*@..@g'`
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printf '%s\n' "$prefix/${to#$common}"
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