3 : 'This file is in the public domain, so clarified as of'
4 : '2006-07-17 by Arthur David Olson.'
8 echo "$0: wild year: $1" >&2
18 2-nonpres|
2-nonuspres)
20 *[02468][048]|
*[13579][26]) exit 1 ;;
30 *[02468][048]|
*[13579][26]) exit 0 ;;
34 echo "$0: wild type: $2" >&2 ;;
37 echo "$0: usage is $0 year even|odd|uspres|nonpres|nonuspres" >&2