我试图表明,如果你当月输入的东西它显示了一个月 如january=1
,february=2
,march=3
...显示一个月
和年2012
,2013
,2014
...
但如果你输入的东西大于12
比它应该告诉你"sorry"
,我不知道如何使消息工作。
echo " please type a number for a month"
read month
echo " please type a number for a year"
read year
if [ "$month" = "1-12" ]
then
cal "$month" "$year"
sleep 2
echo " thank you, good bye... "
else
echo " sorry "
sleep 2
fi