14 lines
239 B
Bash
14 lines
239 B
Bash
#!/usr/bin/env bash
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year=$1
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if [ $# -ne 1 ] || ! [[ $1 =~ ^[0-9]+$ ]]; then
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echo "Usage: leap.sh <year>"
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exit 1
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fi
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if (( year % 4 == 0 && year % 100 != 0 )) || (( year % 400 == 0 )); then
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echo "true"
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else
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echo "false"
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fi |