43 lines
775 B
Bash
Executable file
43 lines
775 B
Bash
Executable file
#! /bin/sh
|
|
#
|
|
# $NetBSD: yearistype.sh,v 1.6 2006/09/23 17:34:36 kleink Exp $
|
|
#
|
|
|
|
: 'This file is in the public domain, so clarified as of'
|
|
: '2006-07-17 by Arthur David Olson.'
|
|
|
|
: '@(#)yearistype.sh 8.2'
|
|
|
|
case $#-$1 in
|
|
2-|2-0*|2-*[!0-9]*)
|
|
echo "$0: wild year - $1" >&2
|
|
exit 1 ;;
|
|
esac
|
|
|
|
case $#-$2 in
|
|
2-even)
|
|
case $1 in
|
|
*[24680]) exit 0 ;;
|
|
*) exit 1 ;;
|
|
esac ;;
|
|
2-nonpres|2-nonuspres)
|
|
case $1 in
|
|
*[02468][048]|*[13579][26]) exit 1 ;;
|
|
*) exit 0 ;;
|
|
esac ;;
|
|
2-odd)
|
|
case $1 in
|
|
*[13579]) exit 0 ;;
|
|
*) exit 1 ;;
|
|
esac ;;
|
|
2-uspres)
|
|
case $1 in
|
|
*[02468][048]|*[13579][26]) exit 0 ;;
|
|
*) exit 1 ;;
|
|
esac ;;
|
|
2-*)
|
|
echo "$0: wild type - $2" >&2 ;;
|
|
esac
|
|
|
|
echo "$0: usage is $0 year even|odd|uspres|nonpres|nonuspres" >&2
|
|
exit 1
|