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