Issue in uploading file using sftp

Hi

I'm using this script to upload a file from local system to sftp server.
But in the log file i'm getting an error "Error during upload"

Can you please help me out ...

### CONFIGURATION
LOCAL_DIR=/abc/out
FILE_MASK="File*.txt"
LOG_DIR=/abc/error/File_`date "+%Y%m%d%H%M%S"`.LOG
SFTP_HOST=sftp.abcd.xy
SFTP_DIR=upload
SFTP_USER=user

BACKUP_DIR=/abc/backup/out
IDENTITY_FILE=/abc/shells/.ssh/ab_xyz
ERROR_DIR=/abc/error
### END OF CONFIGURATION PART
IFS='
'
PATH=/usr/bin
get_local_file() {
if ! LOCAL_FILE=`ls $LOCAL_DIR/$FILE_MASK 2> /dev/null`; then
# file not found
echo "$LOCAL_DIR/$FILE_MASK not found" >>$LOG_DIR;
return 1
fi
return 0
}
send_file() {
REMOTE_FILE=data_`date "+%Y%m%d%H%M%S"`.csv
LOCAL_FILE=`ls $LOCAL_DIR/$FILE_MASK 2> /dev/null`
B_LOCAL_FILE=$(basename $LOCAL_FILE) # basename of local file
#echo "LOCAL_FILE: $LOCAL_FILE"
#echo "REMOTE_FILE: $REMOTE_FILE";
#echo "B_LOCAL_FILE: $B_LOCAL_FILE"
# will simulate for(i=0;i<3;i++)
for i in 1 2 3; do
#echo "COMMAND: echo \"cd upload\nput $LOCAL_FILE\nrename $B_LOCAL_FILE $REMOTE_FILE\" | sftp -o IdentityFile=$IDENTITY_FILE $SFTP\_USER@$SFTP_HOST >>$LOG_DIR 2>&1"

            ERR=$\(echo "cd upload\\nput $LOCAL_FILE\\nrename $B\_LOCAL_FILE $REMOTE_FILE" | sftp -o IdentityFile=$IDENTITY_FILE [EMAIL="$SFTP\_USER@$SFTP\_HOST"]$SFTP\_USER@$SFTP_HOST[/EMAIL] &gt;&gt;$LOG_DIR 2&gt;&1\)
            echo "entering command 1" &gt;&gt;$LOG_DIR 
            
            CODE=$?
            echo $CODE &gt;&gt;$LOG_DIR
            if [ "$CODE" = "0" ]; then
                    break;
            fi
            echo "Connection failed [EMAIL="$SFTP\_USER@$SFTP\_HOST"]$SFTP\_USER@$SFTP_HOST[/EMAIL]" &gt;&gt; $LOG_DIR
    done
    echo $ERR &gt;&gt; $LOG_DIR
    if [ "$CODE" != "0" ]; then
            echo "connection error" &gt;&gt; $LOG_DIR
            return 2
    fi
    if [ "$ERR" != "Connecting to $SFTP_HOST..." ]; then
            \# error during upload
            echo "Error during upload" &gt;&gt; $LOG_DIR
            return 3
    fi
    
    return 0

}
save_local_file() {
N_LOCAL_FILE=$(echo $B_LOCAL_FILE | sed -e "s/\.txt$//")
N_LOCAL_FILE=$N_LOCAL_FILE$(date "+%Y%m%d%H%M%S").txt
echo "N_LOCAL_FILE: $N_LOCAL_FILE" >> $LOG_DIR
if ! mv $LOCAL_FILE $BACKUP_DIR/$N_LOCAL_FILE; then
# creating of backup failed
return 4
fi
return 0
}
report_error() {
mv $LOCAL_DIR/.idoc $LOCAL_DIR/IDOCS_failed_sent_from_SAP.txt
exit 1
}
report_success() {
#touch $LOCAL_DIR/IDOCS_sent_from_SAP.txt
mv $LOCAL_DIR/
.idoc $LOCAL_DIR/IDOCS_sent_from_SAP.txt
exit 0
}
main() {
get_local_file
R_CODE=$?

    if [ "$R_CODE" != "0" ]; then
            report_error $R_CODE
    fi
    send_file
    R_CODE=$?
    if [ "$R_CODE" != "0" ]; then
            report_error $R_CODE;
    fi
    
    save\_local_file
    R_CODE=$?
    if [ "$R_CODE" != "0" ]; then
            report_error $R_CODE
    fi
    \# else everything is ok
    report_success

}
# run !
main

Well what is the value of ERR at this point ?

tyler_durden

ERR vlaue is blank

Can any one help me in this , it's urgent

Can any one help me in this , it's urgent

Error Log:

Connecting to sftp.abcd.xy...
You are connected to sftp.abcd.xy

                        ****USAGE WARNING****

This is a private computer system.

sftp> sftp> Uploading /abc/out/File1.txt to /upload/File1_01_02.txt
sftp> sftp>
entering command 1
0

Error during upload

Error Log:

Connecting to sftp.abcd.xy...
You are connected to sftp.abcd.xy

                        ****USAGE WARNING****

This is a private computer system.

sftp> sftp> Uploading /abc/out/File1.txt to /upload/File1_01_02.txt
sftp> sftp>
entering command 1
0

Error during upload

is there any who can help me out ???????

is there any who can help me out ???????

Can you do the sftp manually using the same parameters as you would normally do in the script?