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.
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