Shell Programming and Scripting

#!/bin/ksh
#Initial Variables
IFILE ="$HOME/bday.csv"
OFILE ="bday_out"$$
MAILID = xxx@abc.com
 
#get today's date & month
DAT=`(date '+%d')` 
DAY=`(date '+%a')` 
MON=`(date '+%b')`

while IFS=' ' read name date day month year
do
  
   date=`$date`
   day=`$day`
   month=`$month`
   if [ $date -eq $DAT -a $day = $DAY -a $month = $MON ]
   then
 echo $name
   fi
done < $IFILE > $OFILE
if [ -f $OFILE -a -s $OFILE ]
then
   sed -i '1i The following users celebrate their birthday:\n' $OFILE
   mailx -s "Birthday on: $DAT" $MAILID  < $OFILE
   \rm $OFILE
   echo "Birthday mail sent"
else
   echo "No birthdays today"
fi

XYZ 03 Tue December 2013
ACB 04 Wed December 2013

IFILE=$HOME/bday.csv
OFILE=bday_out$$
MAILID=xxx@abc.com

while IFS=' ' read name date day month year
do
   date=`$date`
   day=`$day`
   month=`$month`
   if [ $date -eq $DAT -a $day = $DAY -a $month = $MON ]
   then
 echo $name
   fi
done < $IFILE > $OFILE

#!/bin/ksh
#Initial Variables
IFILE="$HOME/bday.csv"
OFILE="bday_out"$$
MAILID="sss@ttt.com"
#get today's date & month
DAT=`(date '+%d')`
DAY=`(date '+%a')`
MON=`(date '+%b')`
while IFS=',' read name date day month year
do
   if [ $date -eq $DAT -a day = $DAY -a month = $MON ]
   then
        echo $name
   fi
done < $IFILE > $OFILE
if [ -f $OFILE -a -s $OFILE ]
then
   sed -i '1i The following users celebrate their birthday:\n' $OFILE
   mailx -s "Birthday on: $DAT" $MAILID  < $OFILE
   \rm $OFILE
   echo "Birthday mail sent"
else
   echo "No birthdays today"
fi

sreenadh,05,Thu,Dec,2013

if [ $date -eq $DAT -a $day = $DAY -a $month = $MON ]

if [ -f $OFILE -a -s $OFILE ]