980afba431
particular importance to those living in the Western Hemisphere as many non-U.S. zones will be changing DST rules next year to match the U.S. Obtained from: Arthur David Olson, ftp://elsie.nci.nih.gov/
38 lines
610 B
Bash
Executable File
38 lines
610 B
Bash
Executable File
#! /bin/sh
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: '@(#)yearistype.sh 8.1'
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case $#-$1 in
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2-|2-0*|2-*[!0-9]*)
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echo "$0: wild year - $1" >&2
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exit 1 ;;
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esac
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case $#-$2 in
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2-even)
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case $1 in
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*[24680]) exit 0 ;;
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*) exit 1 ;;
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esac ;;
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2-nonpres|2-nonuspres)
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case $1 in
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*[02468][048]|*[13579][26]) exit 1 ;;
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*) exit 0 ;;
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esac ;;
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2-odd)
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case $1 in
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*[13579]) exit 0 ;;
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*) exit 1 ;;
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esac ;;
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2-uspres)
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case $1 in
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*[02468][048]|*[13579][26]) exit 0 ;;
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*) exit 1 ;;
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esac ;;
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2-*)
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echo "$0: wild type - $2" >&2 ;;
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esac
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echo "$0: usage is $0 year even|odd|uspres|nonpres|nonuspres" >&2
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exit 1
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