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1 187 aaronmk
#!/bin/sh
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# Joins two map spreadsheets A->B0 and B0->B1 to A->B1, B1 a modification of B0
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selfDir="$(dirname -- "$0")"
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test "$#" -eq 2 || { echo "Usage: $0 map_0 map_1 >joined_map" >&2; exit 2;}
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"$selfDir/join" <"$1" "$2"|"$selfDir/union" "$1"