Date Validation again

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# 1  
Old 01-04-2008
Date Validation again

I want a sample Date validation script using if loops.
The script should first compare "year".If the year is lesser than the current year,It should go for "month" checking.
I have the script that splits the date into year,month and date.I want only the checking part.
My if loop checking is not work properly.
Can you show the right way of checking?

# 2  
Old 01-04-2008
Please show us what you have so far and somebody may be able to provide a suggestion.
# 3  
Old 01-07-2008
This is the splitting part am having:

C_Date=`date -u +%m/%d/%Y`

year="$(echo $Date | cut -d/ -f3)"
month="$(echo $Date | cut -d/ -f1)"
day="$(echo $Date | cut -d/ -f2)"

cyear="$(echo $C_Date | cut -d/ -f3)"
cmonth="$(echo $C_Date | cut -d/ -f1)" cday="$(echo $C_Date | cut -d/ -f2)"
C_Date is current date i.e Today's Date.

if [ $year -gt $cyear ]; then
echo "Enter Valid Year"
Similarly am checking for month and day.Is there any other simple way to do the comparison using case Statement?
# 4  
Old 01-07-2008
Hope this will help u

C_date=`date "+%C%y%m%d"`
inp_date=`echo "$year$month$day"`
if [ "$inp_date" -lt "$C_date" ]
echo "Input Date is less than today"
# 5  
Old 01-07-2008
Define what you mean by date checking. It has to be today's date? or is any valid date okay? ranjithpr provided a basis for comparing relative dates - dates older or younger than a given date.
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