UNIX for Dummies Questions & Answers

Hi everyone

really need some help with this one.

Ive to write a script where the middle date has to be checked and made sure that it is the current date.

281220032812200328122003

This is the format ive to check the date in the middle is the current date.

Can anyone help me with this one - PLEASE.

Thanks

What system are you running? What shell? Also, can you elaborate just a bit more as to how the data looks? Is this date line in every record, or just a header or trailer record of a file? Does the example line you posted represent a complete line?

You can skin this cat in several ways. This assumes the date line is in every record within a file. Here is one:

Code:

FILE_DATE=$(cut -c 9-15 data_file | head -1)
TODAYS_DATE=$(date +'%d%m%Y')

if [ ${FILE_DATE} != ${TODAYS_DATE} ]
 then
   echo "Dates Dont Match"
fi

vcardo10,

Do the format of 1st to 9th of month and Jan to Sep become one digit? Otherwise Google's script may need a improvement.

The Shell is Korn shell

The date line in the example is the content of a file which ive to get the script to check.

Does this elaborate enough?

Thanks

I am not clear with your question, I assume you are asking for today' s date 29122003 to be searched in a file, then the below will work

str=`date -u +%d%m%Y`
grep $str filename

if [ $? -ne 0 ]
then
echo "Date was not found"
exit 1
fi

Regards
JK

Apologise for being so vague

I'l try explain again - fully

I have to write a script that checks a file example - file1

in this file there is a line which looks like

291220032912200329122003

from this i have to make the script check that the date in the middle is the current date.

i.e 291220032812200329122003

this would not be current date therefore i have to raise an alert(which im fine with) to bring this to our attention.

This is my first attempt at writing a script so any help is really appreciated
Is this any clearer?

Thanks

OK, from what you stated, the script should check a string of 3 dates, and make sure that the date in the middle is the current date ( i.e. equal to todays date).

Will the date format always be: ddmmyyyy ?
When the day value or the month value is less than 10, will the format still be ddmmyyyy (i.e 01102003 - have a leading zero?)

If so, then the code I posted should work.