Red Hat / Fedora :: Created A Script To FTP Some Files From A RHEL Box To A EMC NAS?

I've created a script to FTP some files from a RHEL box to a EMC NAS and the script works because if I run it script manually it runs fine and transfers the files to the NAS but when I schedule it in the crontab the script runs but it doesn't transfer anything and I pipe the output of the cron job and I see message about 'passive mode refused' and lib: not a plain file, sys: not a plain file, etc...I did a vi ~/.netrc which contains the a single line of "machine xxx.xxx.xxx.xxx login ftpuser password xxx"

My script looks like:
/usr/bin/ftp -i xxx.xxx.xxx.xxx <<EOF
cd ftpdir

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