One day at a time

First way:

#!/bin/sh
HOST='ftp.users.qwest.net'
USER='yourid'
PASSWD='yourpw'
FILE='file.txt'

ftp -n $HOST <<END_SCRIPT
quote USER $USER
quote PASS $PASSWD
put $FILE
quit
END_SCRIPT
exit 0

Second way:

#!/bin/sh
USER=userid
PASSWD=userpw
ftp -n f2dev <<SCRIPT
user $USER $PASSWD
binary
get some.file
quit
SCRIPT