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9 lines
212 B
Bash
9 lines
212 B
Bash
1 month ago
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#!/bin/bash
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sed 's/[a-z]//g' | \
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tee >(cut -c 1 > /tmp/firstdigits) | \
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tee >(rev | cut -c 1 > /tmp/seconddigits) > /dev/null | \
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paste - /tmp/firstdigits /tmp/seconddigits -d "" | \
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paste -sd+ | \
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bc
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