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comparing two times

 
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# 1  
Old 07-18-2009
comparing two times
Hi Good Morning all,

I have two dates and times in the beloe format.
1. 07/18/2009 03:45:49
2. 07/18/2009 03:46:41

i will grep these values from a file. Now my problem is i need to find out whether the second valus is bigger thatn the 1 value. How to compare the times. Please help me in this.

Thanks in advance.

Raju
# 2  
Old 07-18-2009
Hint:convert time in sec or min then compare
# 3  
Old 07-18-2009
Code:
#!/bin/ksh93

date1="07/18/2009 03:45:49"
date2="07/18/2009 03:46:41"

if (( $(printf "%(%s)T" "$date1") < $(printf "%(%s)T" "$date2") ))
then
    echo "date2 is after date2"
else
    echo "date2 is not after date1"
fi

# 4  
Old 07-20-2009
Quote:
Originally Posted by fpmurphy
Code:
#!/bin/ksh93
 
date1="07/18/2009 03:45:49"
date2="07/18/2009 03:46:41"
 
if (( $(printf "%(%s)T" "$date1") < $(printf "%(%s)T" "$date2") ))
then
    echo "date2 is after date2"
else
    echo "date2 is not after date1"
fi


Hi Thanks for the reply.

I got a little problem with the code.
i wrote the command you gave to me. but while i am trying to ececute to the script if says the syntax errro. and the line number it shows is the line where IF condition is there. Please help me in this.
# 5  
Old 07-21-2009
What shell are you using?
 
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