compare between the two dates

balaji23_d · #1 (**permalink**) 01-08-2009

Hi all,

How to check whether the given the two dates is minimal.

example:

Date 1 : 23-03-2008 with timestamp
Date 2: 20-03-2008 With tmestamp

I want to compare the twodates and which it gives the minimum date

i wnat to get the output like this below

output: the Date2 is minimum date

otheus · #2 (**permalink**) 01-08-2009

Convert each to a YYYYMMDD string and compare:

Code:

date1num=`echo $date1 | awk -F- '{ print $3 $2 $1 }'`
date2num=`echo $date2 | awk -F- '{ print $3 $2 $1 }'`
if [ $date1num = $date2num]; then
   echo Dates are equal.
elif [ $date1num < $date2num ] ; then 
   echo "Date 1 is the minimum date"
else
   echo "Date 2 is the minimum date"
fi

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