how to use ftp(1) in batch mode

[Wojciech Puchar]

>> thank you. it works. actually even without netrc
>>
>> (echo command1;echo command2)|ftp ftp://user:password@server/
>
> You better not develop a habit typing passwords in command line or URLs, this is quite insecure.
>
>
why it is less secure as long as it is my account with 
security.bsd.see_other_uids=0 set on server or even my own computer.