Shell Programming and Scripting

#!/bin/csh -vdb
cd /home/lingalma/temp/cdl
FN =`ls -lrt obsrec* | tail -1 | awk '{print $9}'`
DN =`ls -lrt obsrec* | tail -1 | awk '{print $9}'| awk -F. '{print $1}'`
 
#FN should be obsrec_31583_090212.xls, and DN should be obsrec_31583_090212

cp $FN /home/lingalma/temp/obsrec
cd /home/lingalma/temp/obsrec
if [ wc -l $FN => "65000"];
then
split -l 65000 $FN $DN
rm -f $FN
NUM=1
ls | while read line
do
mv $line $DN_$NUM.xls
$(( NUM + 1 ))
done
fi
EOF

 
cd /home/lingalma/temp/cdl
FN =`ls -lrt obsrec* | tail -1 | awk '{print $9}'`
FN: Command not found
DN =`ls -lrt obsrec* | tail -1 | awk '{print $9}'| awk -F. '{print $1}'`
DN: Command not found
cp $FN /home/lingalma/temp/obsrec
FN: Undefined variable

cd /home/lingalma/temp/cdl
FN=`ls -lrt obsrec* | tail -1 | awk '{print $9}'`
FN=obsrec_31583_090212.xls: Command not found
DN=`ls -lrt obsrec* | tail -1 | awk '{print $9}'| awk -F. '{print $1}'`
DN=obsrec_31583_090212: Command not found
cp $FN /home/lingalma/temp/obsrec
FN: Undefined variable

FN="`ls -lrt obsrec* | tail -1 | awk '{print $9}'`"

set x=alkshdlkahslhdlfkhasdf

x=alshdaklshf