2 : 'Determine whether year is of appropriate type (this file is obsolete).'
4 : 'This file is in the public domain, so clarified as of'
5 : '2006-07-17 by Arthur David Olson.'
9 echo "$0: wild year: $1" >&2
19 2-nonpres|
2-nonuspres)
21 *[02468][048]|
*[13579][26]) exit 1 ;;
31 *[02468][048]|
*[13579][26]) exit 0 ;;
35 echo "$0: wild type: $2" >&2 ;;
38 echo "$0: usage is $0 year even|odd|uspres|nonpres|nonuspres" >&2