Shell Programming and Scripting

#!/bin/ksh
TOUCHFILE=/home/ingxsas/STMA001ENRPNT_PntInputLoop.touch
if [ -f $TOUCHFILE ]
then
  echo $0 already executing, exiting at `date`
  exit 0
fi
touch $TOUCHFILE
 
pntcnt=`ls -l /$ROOTDIR/scp/inbox | grep "PNT." | wc -l`
if [[ $pntcnt -gt 0 ]] then
 ls /$ROOTDIR/scp/inbox | grep "PNT." > /$ROOTDIR/output/tma/pnt/input/pntprocess.dat
 pntcnt=`wc -l /$ROOTDIR/output/tma/pnt/input/pntprocess.dat|awk '{print $1}`
 sleep 10
 curcnt=1
 while (( $curcnt <= $pntcnt ))
 do
  filename=`head -$curcnt /$ROOTDIR/output/tma/pnt/input/pntprocess.dat | tail -1`
  New command line to to idle the process if time is between 2-3AM.
  SASPROG=`PathSASCode.sh TMA001ENRPNT_PNTProcessing.sas`
  sas $SASPROG -sysparm $filename \
       -work /$WORKDIR/imatemp \
       -log /$ROOTDIR/output/tma/pnt/logs \
       -print /$ROOTDIR/output/tma/pnt/logs
  rc=$?
  if (($rc != 0))
    then
    echo PNT Processing Terminated due to bad return code - $filename at `date`
    exit $rc
  fi
 
  sed "s/^/$filename/" /$ROOTDIR/scp/inbox/$filename > /$ROOTDIR/output/tma/pnt/archive/$filename
  rc=$?
  if (($rc != 0))
    then
    echo PNT Processing Terminated - error with sed command - $filename at `date`
    exit $rc
 fi
 
  mv /$ROOTDIR/scp/inbox/$filename /$ROOTDIR/scp/inbox/archive/$filename
  rc=$?
  if (($rc != 0))
    then
    echo PNT Processing Terminated - error with mv command - $filename at `date`
    exit $rc
  fi
 
  ((curcnt=curcnt+1))
 done
 echo Successful process of $pntcnt PNT files completed at `date`
fi
rm $TOUCHFILE