Erase the source file open; specify a tempfile name option

[Theo de Raadt]

> I need help understanding this.  Adding useful options to a utility
> certainly makes it more complex, but it also makes it more useful.

Actually, that is not the unix philosphy.

> For me, the ability to move multiple files from system to system over
> the Internet is vital.  The only other secure way I know of to move
> multiple files from system to system is to use something like expect
> with sftp or to use scp and follow that up with an ssh "rm" (but
> error-handling such a kludge is very annoying).

Or use sftp.  Or, consider that the above is NOT a kludge, because of
the Unix philosophy.