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Full Discussion: prevent ssh from executing result in shell
Top Forums Shell Programming and Scripting prevent ssh from executing result in shell Post 302388815 by pludi on Thursday 21st of January 2010 02:02:56 PM
Old 01-21-2010
Yes, the first part tries to run the command "0000000000002356", but on the remote host. If you'd use regular quotes (') instead of backticks (`) the nawk command will be sent to, and executed, on the remote host. Until then, it's executed locally, and the result give to ssh to run elsewhere.

As for your second question: yes, ssh ignores pipes and here-docs for security reasons. Anything sent in that way will only be piped to a command running on the remote host, but never in an interactive session.
 

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LEARN ABOUT CENTOS

hwloc-assembler-remote

HWLOC-ASSEMBLER-REMOTE(1)					       hwloc						 HWLOC-ASSEMBLER-REMOTE(1)

NAME

       hwloc-assembler-remote - Assemble multiple remote host topologies

SYNOPSIS

       hwloc-assembler-remote [options] output.xml host1 host2 ...

OPTIONS

       --ssh <ssh>
	      Use the given ssh command (and options) to connect to remote hosts.

       --lstopo-path <path>
	      Use  the	given path as the remote lstopo command when gathering remote topologies.  By default, lstopo is taken from the PATH envi-
	      ronment variable.

       --lstopo-opts <opts>
	      Pass the given lstopo options when gathering remote topologies.

       --show Display the resulting topology before exit.

       -f --force
	      Ignore failure to load a remote host topology.

DESCRIPTION

       hwloc-assembler-remote is a frontend to hwloc-assembler.  It takes care of retrieving the remote nodes' topologies before  assembling  them
       with hwloc-assembler.

EXAMPLES

       To assemble three nodes topologies:

	   $ hwloc-assembler-remote output.xml host1 host2 host3

       To assemble the topology of a multi-process MPI job defined as a machinefile:

	   $ hwloc-assembler-remote output.xml `cat machinefile | sort | uniq`

RETURN VALUE

       Upon successful execution, hwloc-assembler-remote returns 0.

       hwloc-assembler-remote will return nonzero if any kind of error occurs, such as (but not limited to) failure to parse the command line.

SEE ALSO

       hwloc(7), lstopo(1), hwloc-assembler(1)

1.7								   Apr 07, 2013 					 HWLOC-ASSEMBLER-REMOTE(1)
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