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better usage message

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SCCS-file: yearistype.sh
SCCS-SID: 7.5
This commit is contained in:
Arthur David Olson
2000-08-08 12:28:00 -04:00
committed by Paul Eggert
parent ad183b533d
commit 80611b2ab1
1 changed files with 13 additions and 8 deletions
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21
yearistype.sh
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@ -3,24 +3,29 @@
: '%W%'
case $#-$2 in
2-even) case $1 in
2-even)
case $1 in
*[24680]) exit 0 ;;
*) exit 1 ;;
esac ;;
2-nonpres) case $1 in
2-nonpres|2-nonuspres)
case $1 in
*[02468][048]|*[13579][26]) exit 1 ;;
*) exit 0 ;;
esac ;;
2-odd) case $1 in
2-odd)
case $1 in
*[13579]) exit 0 ;;
*) exit 1 ;;
esac ;;
2-uspres) case $1 in
2-uspres)
case $1 in
*[02468][048]|*[13579][26]) exit 0 ;;
*) exit 1 ;;
esac ;;
2-*) echo "$0: wild type - $2" >&2
exit 1 ;;
*) echo "$0: usage is $0 year type" >&2
exit 1 ;;
2-*)
echo "$0: wild type - $2" >&2
;;
esac
echo "$0: usage is $0 year even|odd|uspres|nonpres|nonuspres" >&2