gpg to a pipe

[Antonin Karasek <lists@ceskyserver.cz>]

Hi,
I make my backups by tar and encrypt it by gpg.

I do the job over pipe because I don't have too much disk space. The 
result is 28GB file "backup.tar.gpg"

Then I send the file over ftp to backup server.

Is it possible to send the file directly from a pipe? More precisely - 
gpg will write it's output to a pipe and ftp will read the data from the 
pipe.

I tryed to do that, but I wasn't able to force gpg to write the 
encrypted data to a pipe.

Can anybody help me?

Many thaks.

Regards
	Tony