我試圖表明,如果你當月輸入的東西它顯示了一個月 如january=1
,february=2
,march=3
...顯示一個月
和年2012
,2013
,2014
...
但如果你輸入的東西大於12
比它應該告訴你"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