You may want to consider something like this for loading the ldt files:
################################
# APPLY_LDT file
# Parameters: $1 LDT file name
#
################################

APPLY_LDT(){
lctfile=`grep “# dbdrv:” $1 | sed ’s/.*@\([A-Z]\{1,\}\):\([A-Za-z0-9:/.]\{1,\}\).*/\2/’`
lcttop=`grep “# dbdrv:” $1 | sed ’s/.*@\([A-Z]\{1,\}\):\([A-Za-z0-9:/.]\{1,\}\).*/\1_TOP/’`
lctpath=`set | grep $lcttop= |cut -d’=’ -f2`/$lctfile

# Copy and backup the file
COPYFILE $1 $XBOL_TOP/patch/115/import
# Run FNDLOAD and apply change
if FNDLOAD $APPSID 0 Y UPLOAD ${lctpath} $1
then
echo “\n$1 Changes sucessfully applied, using ${lctfile}”
else
echo “$1 failed”
echo “The Login id: $APPSID or LCT file ${lctpath} may be invalid.”
echo “Please check the FNDLOAD log file above and rerun”
echo “Aborting……”
ERROR_AND_EXIT
fi;
}