isNumeric()
{
numericExpression='^[0-9]+$'
if ! [[ $1 =~ $numericExpression ]]
then
echo 1;
else
echo 0;
fi
}

getColumnData()
{
echo `echo $1|cut -d "," -f1,2 --output-delimiter " "`
}

containsSegment()
{
if [[ $1 =~ "LSNCS808" ]] || [[ $1 =~ "LSNCS097" ]] || [[ $1 =~ "LSNCS148" ]]
then
echo 0;
else
echo 1;
fi
}
FOLDER=/omnicron-space/Lifesys/Segdataconv/csv_files
EXTENSION=csv
SEGMENT_FILE=${FOLDER}/$1_SEGMENT.${EXTENSION}
NON_SEGMENT_FILE=${FOLDER}/$1_NONSEGMENT.${EXTENSION}



# Assuming the first column in the record is always numeric and it is the header of the record
# any line not following the above pattern will be treated as the data belong to the header record
# Skipping the first line in the file
echo " Processing the file $1..."
sed 1q $1 | tee $NON_SEGMENT_FILE >$SEGMENT_FILE
sed 1d $1 |while read line
do
firstCol=(`getColumnData $line`)
isRecordHeader=`isNumeric ${firstCol[0]}`;
if [[ $isRecordHeader =~ "0" ]]
then
if [[ `containsSegment ${firstCol[1]}` =~ "0" ]]
then
#The data has to be appended to the segment file
filetoAppend=$SEGMENT_FILE;
else
#the data has to be appended to the non segment file
filetoAppend=$NON_SEGMENT_FILE;
fi
echo $line >>"$filetoAppend"
else
echo $line >>"$filetoAppend"
fi
done

echo " Finished processing the file $1..."
echo " Generated the following files: $SEGMENT_FILE, $NON_SEGMENT_FILE"


please suggest wat changes to be done in the above script to look for the values in sixth column and search for pattern "VS KSDS"