Shell Programming and Scripting

hello!

I need a date calculation script that need to do that:
./date.sh 20090312
and the script need to give me which day is it for example monday friday or what else!
can anyone help me?? its really urgent :S thx the help!

What have you tried so far?

that's the problem. i dont have any solution how i need to start. i have write this :

Code:

#!/bin/bash/
DATE=$(echo $1 |awk 'BEGIN{FIELDWIDTHS="4 2 2"}{print $1 RS $2 RS $3 }')

YEAR=$(echo $DATE | cut -d ' ' -f1)
MONTH=$(echo $DATE | cut -d ' ' -f2)
DAY=$(echo $DATE | cut -d ' ' -f3)


if [ $MONTH -gt 12 ];
then
  echo "Wrong Month!!"
fi


if [ $DAY -gt 31 ];
then
  echo "Wrong Day!!"
fi

but this only check the month and the day validation.

What Operating System and version do you have?

Code:

uname -a

What Shell do you use?

Code:

echo $SHELL

And more specifically:
Do you have "perl"?
Do you have the GNU date package?

What is the normal value of your timezone?

Code:

echo $TZ

We know what your input looks like and can guess that your input date format is YYYYMMDD , but what output are you looking for? A numeric day of week (Sunday=0) or a character representation like "Wed" or "Wednesday" or whatever?

just need to write that for output wed or sun...!

---------- Post updated at 08:50 AM ---------- Previous update was at 08:49 AM ----------

and yes my input date format is yyyymmdd

Assuming you are on a GNU/Linux platform:

Code:

$ date +%a --date "20090312"
Thu

solved thx