FTP without real files!

http://publib.boulder.ibm.com/infocenter/systems/index.jsp?topic=/com.ibm.aix.prftungd/doc/prftungd/ftp.htm –

You can use the ftp command to send a very large file by using /dev/zero as input and /dev/null as output. This allows you to transfer a large file without involving disks (which might be a bottleneck) and without having to cache the entire file in memory.

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