21 lines
512 B
Text
21 lines
512 B
Text
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#!/bin/bash
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#
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# Converts weights between pounds and kilograms. Examples:
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# 10 pounds in kg
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# 2.5 kg in pounds
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if [[ -z "$@" ]]; then
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echo "^[0-9]+(\.[0-9]+)? kg in pounds$"
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echo "^[0-9]+(\.[0-9]+)? pounds in kg$"
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elif [[ "$1" == "--dry-run" ]]; then
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shift
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echo "$@"
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else
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NUM="$(echo "$@" | sed -E 's/([0-9]+) .*/\1/g')"
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if echo "$@" | grep -E "^[0-9]+(\.[0-9]+)? pounds in kg$" > /dev/null; then
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awk "BEGIN {printf \"%.2f\n\", $NUM/2.20462}"
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else
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awk "BEGIN {printf \"%.2f\n\", $NUM*2.20462}"
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fi
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fi
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