How can I handel errors in .ksh file

Question

Hi All
I am writing a .ksh file which will create FTP a file to the ftp location ..
My file looks like this :-
cd ${RUNTIME}
NOW=$(date +"%y%m%d%H%M%S")
ftp -i -n -v ${TEST_TP_SERVER} <<END
user $TEST_TP_USER_ID $TEST_TP_USER_PWD
lcd ${OUTDIR}
put "TEST.txt" "$NOW.ABC"
quit
END
My question is how can I handel errors here in this file . If something happens after cd ${RUNTIME} line then I can write like this :
if [ "$?" -ne "0" ]; then echo "Can not connect , wrong user name / password " exit 1 fi 
But after ftp -i -n -v ${TEST_TP_SERVER} <<END line I cant write the same . So can anyone please tell me how can I write error handling part after FTP command ?

Answer 1

Moreover, I need to send that page as a whole by email, so even if the white spaces between parts of picture
could be removed during printing, it wouldn't be a solution =(
You can email the new PDF document.