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Top Forums UNIX for Advanced & Expert Users ssh - transfers with gateway hopping Post 302241363 by wempy on Monday 29th of September 2008 07:14:38 AM
Old 09-29-2008
I think you need to run the commands at the destination in a sub-shell at the destination (replace the single quotes with parenthesis)
Code:
tar cf - .|ssh gateway1 ssh gateway2 "ssh dest (cd /tmp;tar xf -)"

may do what you require, but I don't have four machines to test this with, have tried it between two and it works.

And the reason the originating tar doesn't complete is probably because it is waiting for input from the command line (tar cf -) for the files you wish to archive. to close it you need a CTRL-D in the input stream, or give it a list, or a toplevel directory (tar cf - /top/level/directory/)

Last edited by wempy; 09-29-2008 at 08:18 AM.. Reason: clarification and correction
 

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BF_TAR(1)						    Bogofilter Reference Manual 						 BF_TAR(1)

NAME
bf_tar - shell script to write a tar file of a bogofilter directory to stdout SYNOPSIS
bf_tar [-r] [-R] bogofilter_directory DESCRIPTION
bf_tar bundles a bogofilter working directory in tar format and copies it to standard output (your console, or where you redirect it, see EXAMPLES below). OPTIONS
The -r option causes bf_tar to remove inactive log files after the archive has been written successfully. The default is to leave log files. The -R option causes bf_tar to remove inactive log files before the archive is written. This may reduce chances that the resulting archive is recoverable should it become damaged. The archive may be smaller though. The default is to leave log files. EXIT STATUS
The script exits with status code 0 if everything went well, and nonzero if it encountered trouble. EXAMPLES
o bf_tar ~/.bogofilter > outfile.tar Writes a standard .tar file containing the essential files from ~/.bogofilter to outfile.tar. o bf_tar ~/.bogofilter | gzip -9 -c > outfile.tar.gz Writes a gzipped .tar.gz file containing the essential files from ~/.bogofilter to outfile.tar.gz. o bf_tar `pwd`/mydirectory > outfile.tar Prepend $(pwd)/ or `pwd`/ if you want to specify an absolute path instead of a relative path. NOTES
This script is meant for use with Berkeley DB based bogofilter versions. This script requires a SUSv2 compliant pax utility. This script expects a SUSv2 compliant shell. Solaris systems should have the SUNWxcu4 package installed (when bogofilter is configured) so that /usr/xpg4/bin/sh can be used. AUTHORS
Matthias Andree Bogofilter 03/15/2010 BF_TAR(1)
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