How to run simple single command on multiple Linux servers? Post: 303006381

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Top Forums Shell Programming and Scripting How to run simple single command on multiple Linux servers? Post 303006381 by gull04 on Wednesday 1st of November 2017 08:51:37 AM

11-01-2017

Registered User

Hi,

Here is some code that you should be able to easily adapt, this was one of the subroutines used to collect data from over 600 servers prior to a DCM - just adapt and substitute your own bits.

Code:

for HOST in `cat ${CONFDIR}/svr-access.conf | grep -v '^#'`
do
        OUTFILE=details-${HOST}.csv
        echo "checking ${HOST}"
        MSG "checking ${HOST}"
        HOSTNAME=`ssh ${HOST} "uname -n"`
        OS=`ssh ${HOST} "uname"`
        # ssh_get_os_details ${HOST} ${OS}
	MSG "Found ${HOSTNAME} running ${OS}"
MSG "JOB STEP 2"
        if [ ${OS} = "AIX" ]
        then
MSG "JOB STEP 3"
                if [ `echo ${OSVER} | cut -c1` -ne 4 ]
                then
                        ssh_get_aix56_getdetails ${HOST} > ${DATADIR}/${OUTFILE}
                fi
	elif [ ${OS} = "SunOS" ]
	then
MSG "JOB STEP 4"
	${FUNCDIR}/ssh_solaris_getdetails ${HOST} > ${DATADIR}/${OUTFILE}
        fi
done

Regards

Gull04

---------- Post updated at 12:51 PM ---------- Previous update was at 12:35 PM ----------

Hi,

Just for some more information, here is one of the more simple routines that are called in the ssh calling script.

Code:

############################################################################################
#
# Get the Memory info.....
#
############################################################################################

get_mem()
{
GETMEM=`ssh ${SSHHOST} "/usr/sbin/prtconf 2>&1 | grep -v devinfo | grep 'Memory size' | /usr/xpg4/bin/awk '{ print $1 }'"`
MEM=`echo ${GETMEM} | awk '{ print $3 }'`
GBMEM=`echo ${MEM} /1024 | bc`
MSG "${SSHHOST} Memory Check Executed."
}

Regards

Gull04

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LEARN ABOUT MOJAVE

net::time

Net::Time(3pm)						 Perl Programmers Reference Guide					    Net::Time(3pm)

NAME

       Net::Time - time and daytime network client interface

SYNOPSIS

	   use Net::Time qw(inet_time inet_daytime);

	   print inet_time();	       # use default host from Net::Config
	   print inet_time('localhost');
	   print inet_time('localhost', 'tcp');

	   print inet_daytime();       # use default host from Net::Config
	   print inet_daytime('localhost');
	   print inet_daytime('localhost', 'tcp');

DESCRIPTION

       "Net::Time" provides subroutines that obtain the time on a remote machine.

       inet_time ( [HOST [, PROTOCOL [, TIMEOUT]]])
	   Obtain the time on "HOST", or some default host if "HOST" is not given or not defined, using the protocol as defined in RFC868. The
	   optional argument "PROTOCOL" should define the protocol to use, either "tcp" or "udp". The result will be a time value in the same
	   units as returned by time() or undef upon failure.

       inet_daytime ( [HOST [, PROTOCOL [, TIMEOUT]]])
	   Obtain the time on "HOST", or some default host if "HOST" is not given or not defined, using the protocol as defined in RFC867. The
	   optional argument "PROTOCOL" should define the protocol to use, either "tcp" or "udp". The result will be an ASCII string or undef upon
	   failure.

AUTHOR

       Graham Barr <gbarr@pobox.com>

COPYRIGHT

       Copyright (c) 1995-2004 Graham Barr. All rights reserved.  This program is free software; you can redistribute it and/or modify it under
       the same terms as Perl itself.

perl v5.18.2							    2013-11-04							    Net::Time(3pm)

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