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Annotation of embedaddon/rsync/rsyncsh.txt, revision 1.1

1.1     ! misho       1: rsyncsh
        !             2: Copyright (C) 2001 by Martin Pool
        !             3: 
        !             4: This is a quick hack to build an interactive shell around rsync, the
        !             5: same way we have the ftp, lftp and ncftp programs for the FTP
        !             6: protocol.  The key application for this is connecting to a public
        !             7: rsync server, such as rsync.kernel.org, change down through and list
        !             8: directories, and finally pull down the file you want.
        !             9: 
        !            10: rsync is somewhat ill-at-ease as an interactive operation, since every
        !            11: network connection is used to carry out exactly one operation.  rsync
        !            12: kind of "forks across the network" passing the options and filenames
        !            13: to operate upon, and the connection is closed when the transfer is
        !            14: complete.  (This might be fixed in the future, either by adapting the
        !            15: current protocol to allow chained operations over a single socket, or
        !            16: by writing a new protocol that better supports interactive use.)
        !            17: 
        !            18: So, rsyncsh runs a new rsync command and opens a new socket for every
        !            19: (network-based) command you type.
        !            20: 
        !            21: This has two consequences.  Firstly, there is more command latency
        !            22: than is really desirable.  More seriously, if the connection cannot be
        !            23: done automatically, because for example it uses SSH with a password,
        !            24: then you will need to enter the password every time.  We might even
        !            25: fix this in the future, though, by having a way to automatically feed
        !            26: the password to SSH if it's entered once.