Import Data pump Generation script

#############################################
# Import Data pump Generation script
#############################################

for i in 1
do

PWD=`pwd`
DPAREX=`sqlplus -s /nolog<<END
connect / as sysdba
set pages 100 lines 220 heading off feedback off
select DIRECTORY_NAME
 from dba_directories
where DIRECTORY_PATH like '${PWD}%'
/
END`
echo -e "The datapump directory is called: = \t${DPARE}\n\n"

if [ -z ${DPAREX} ]
  then echo -e "Incorrect directory - change\n\tABORTING!!!"
else
  echo "Correct directory"
  DPARE=`echo ${DPAREX}`
  export DPARE
  echo ${DPARE}
  echo "Enter schema: "
  read SCHEMA
  TO_SCHEMA=${SCHEMA}
  echo "Enter remap schema from: (press return if not required)"
  read FROM_SCHEMA
  export ORACLE_OWNER=${LOGNAME}
  echo "Enter remap tablespace from: (press return if not required)"
  read F_TSPACE
  echo "Enter remap tablespace to: (press return if not required)"
  read T_TSPACE
  # DT=`date '+%Y%d%m%H%M'`
  DT=`date '+%Y%m%d_%H%M'`
  EXPDF=`ls expdp*.dmp | cut -f-4 -d"_" | uniq`
  TRUNCF=`ls expdp*.dmp | cut -f-4 -d"_" | uniq | cut -f1-3 -d"_" | uniq`
  FBDT=`date "+\"TO_TIMESTAMP('%d/%m/%Y %H:%M:%S','DD-MM-YYYY HH24:MI:SS')\""`
  PCNT=`ls expdp*.dmp | cut -f-4 -d"_" | uniq | wc -l`
  #
  # Test Script
  #
  echo -e "  nohup impdp \"/\" \\"
  if [[ -z ${FROM_SCHEMA} ]]
  then
  echo -e "  schemas=${SCHEMA} \\"
  else
  echo -e "  remap_schema=${FROM_SCHEMA}:${TO_SCHEMA} \\"
  fi
  if [[ -n ${F_TSPACE} ]]
  then
  echo -e "  remap_tablespace=${F_TSPACE}:${T_TSPACE} \\"
  fi
  echo -e "  directory=${DPARE} \\
  dumpfile=${TRUNCF}_%U.dmp \\
  logfile=impdp${SCHEMA}_${DT}.log \\
  JOB_NAME=IMP_${SCHEMA}_${DT} \\
  EXCLUDE=INDEX_STATISTICS \\
  EXCLUDE=TABLE_STATISTICS \\
  EXCLUDE=STATISTICS \\
  TABLE_EXISTS_ACTION=TRUNCATE or REPLACE \\
  CONTENT=DATA_ONLY or METADATA_ONLY \\
  PARALLEL=${PCNT} \\
  metrics=y &"
  #
fi
echo -e "\n\n"
done