28 lines
655 B
Bash
28 lines
655 B
Bash
#!/usr/bin/env bash
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MINUTE=60
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HOUR=$(($MINUTE * 60))
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DAY=$(($HOUR * 24))
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MONTH=$(($DAY * 30))
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YEAR=$(($DAY * 365))
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if [[ $# < 2 ]]; then
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echo "Usage: $0 <birthdate> <age>"
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exit
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fi
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print_lifetime() {
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future=$(date +%s -d "$1 + $2 years")
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epoch=$(($future - $(date +%s)))
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echo "Seconds until $2 years old: $epoch"
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echo "Minutes until $2 years old: $(($epoch / $MINUTE))"
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echo "Hours until $2 years old: $(($epoch / $HOUR))"
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echo "Days until $2 years old: $(($epoch / $DAY))"
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echo "Months until $2 years old: $(($epoch / $MONTH))"
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echo "Years until $2 years old: $(($epoch / $YEAR))"
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}
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print_lifetime "$1" "$2"
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