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Top Forums Shell Programming and Scripting Declare and grep a variable via ssh/remote/loop Post 303021733 by kenshinhimura on Wednesday 15th of August 2018 03:29:39 PM
Old 08-15-2018
Code:
for i in `my remote servers|sort`; do echo -n $i "";ssh $i " f=\`/sbin/ip a|egrep '127.127|128.128' |head -1| awk '{print \$NF }' \` ; echo \$f    "  ; done

------ Post updated at 02:29 PM ------

I added \ on "`", without it, I can't declare a variable to a remote server.
Thank you

Last edited by Don Cragun; 08-15-2018 at 06:13 PM.. Reason: Add missing CODE and ICODE tags.
This User Gave Thanks to kenshinhimura For This Post:
 

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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. -v --verbose Verbose messages. 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) 1.4.1 Feb 27, 2012 HWLOC-ASSEMBLER-REMOTE(1)
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