07-16-2008
Match a specific IP range
Hello all,
I would like a bit of help with a problem I am having. I have the following example file:
$ cat test_hosts
10.10.2.3 host1
10.10.2.4 host2
10.10.2.130 host3
10.10.2.5 host4
10.10.2.230 host5
10.10.2.22 host6
I need to match all IP addresses in the 10.10.2.1-10.10.2.22 range. I have tried all kind of things but for the life of me, I can't get it to work.
$ cat test_hosts | egrep "10\.10\.2\.[1,22]\s"
This shows nothing.
$ cat test_hosts | egrep "10\.10\.2\.[1,22]"
10.10.2.130 host3
10.10.2.230 host5
10.10.2.22 host6
Not exactly what I need. What am I doing wrong ?
Thanks,
Sylaan
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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)