Shell Programming and Scripting

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PUTLOGFILE= /xxx/ftp_log.log
FAILPUTLOGFILE= /xxx/fail_ftp_log.log

In FTP we use 
ftp -v -i -n $FTPHOST > $PUTLOGFILE 2> $FAILPUTLOGFILE <<END_SCRIPT

What does the above command do in FTP wher put in a script ?

If I change it to SFTP can i use the below to transfer file to remote server and capture details in log file

sftp -v -i -n user1@10.10.10.10 > $PUTLOGFILE 2> $FAILPUTLOGFILE <<END_SCRIPT

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#!/bin/sh
. $CUST_TOP/admin/setftpconninfo.env

OUTFILEDIR="/opt/oracle/applprd2/apps/apps_st/appl/cust/outbound"
ARCHIVEDIR="/opt/oracle/applprd2/apps/apps_st/appl/cust/outbound/archive"
REMOTETODIR="/test/inbound"
PUTLOGFILE="/opt/oracle/applprd2/apps/apps_st/appl/cust/intf_monitor/log/ftp_put.log"  #log when successful
FAILPUTLOGFILE="/opt/oracle/applprd2/apps/apps_st/appl/cust/intf_monitor/log/ftp_put_fail.log"  #log when fail
DATE=`date '+%y-%m-%d'`

echo "SFTP - OutBound Files"

cat /dev/null > /opt/oracle/applprd2/apps/apps_st/appl/cust/intf_monitor/log/ftp_put.log
cat /dev/null > /opt/oracle/applprd2/apps/apps_st/appl/cust/intf_monitor/log/ftp_put_fail.log

cd $OUTFILEDIR

#To Transfer prod update Files
shopt -s nullglob
for f in prod_update*.csv; 
do
echo "Processing $f file.."
sftp -v -i -n user1@10.10.10.10 > $PUTLOGFILE 2> $FAILPUTLOGFILE <<END_SCRIPT
lcd $OUTFILEDIR
cd $REMOTETODIR
#binary
put $f $REMOTETODIR/$f
quit
END_SCRIPT

EXITSTATUS=`wc $FAILPUTLOGFILE | awk '{print $1}'`
if [ "$EXITSTATUS" != "0" ] 
  then
         echo "FTP Connection Failed"
	 exit -1 
  else		
	echo "$f has been Successfully moved to FTP Destination $REMOTETODIR"

	   mv $OUTFILEDIR/$f $ARCHIVEDIR
	   rm -f $OUTFILEDIR/$f
	
fi
done

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