Comments on: Execute Commands on Multiple Linux or UNIX Servers

By: tepisi

tepisi — Thu, 23 Dec 2010 12:14:48 +0000

But, how to execute remote self made shell script via ssh?

By: Jidnesh I. Bhogare

Jidnesh I. Bhogare — Tue, 12 Jan 2010 06:43:03 +0000

Hi, the script is really help ful!! Thanks for this. I want to add one small things for the administrators / developers who want to execute a command only on the remote machine via ssh + shell script e.g ssh test@192.168.0.2 ‘service httpd status’ ….if some one want to change the single quoted parameter…he has to defined that much variable and called each variable one by one as per his desire to form expected command…check this code

#!/bin/sh
INPUT="service"
I2=$1
#I2="httpd"
I3=$2
#I3="stop"
for I in $INPUT
do
echo -e "----------------------------------------------\n";
for ip1 in $I2
do
for ip2 in $I3
do
ssh root@192.168.0.2 $I $ip1 $ip2
done
done
echo -e "----------------------------------------------\n";
done

By: Nitn G

Nitn G — Fri, 09 Oct 2009 17:30:32 +0000

i tested this script found not working when one of host is down ssh command does not proceed to next host

please help

Nitin

By: Boby Thomas

Boby Thomas — Tue, 24 Mar 2009 10:49:57 +0000

Nice script….thanks

By: Albert

Albert — Tue, 30 Dec 2008 19:47:28 +0000

Great script, easy to use and understand. Thanks.

By: nfo

nfo — Wed, 10 Sep 2008 08:14:05 +0000

Hi, nice script, simple and functionally!
another simialar solution is http://freshmeat.net/projects/dsh/
dsh can start a command parallel and serial, witch is a small advantage, but never mind.

best regards
andreas

By: WikiGeeiki

WikiGeeiki — Sat, 23 Dec 2006 23:29:00 +0000

Excellent article! Thank you.

By: Anonymous

Anonymous — Wed, 28 Dec 2005 20:55:00 +0000

Very nice script. I use(d?) to manually write a “for” loop every time I need to run the same command on multiple hosts.
I’ve just modified your sample script, declaring another variable (COMMAND=$@) to use instead of “w”, so I can run
./dsh cat /etc/hosts to get the content of all servers’ /etc/hosts in my mailbox.

By: Michael

Michael — Wed, 28 Dec 2005 20:31:00 +0000

If you want to fully parallelize the script you can wrap the ssh command in parentheses in order to execute in a subshell, I believe. That way the script doesn’t wait for the program to finish. I use this to dynamically test all the workstations in my lab (~150) to see which ones are up and running, so I can generate a machine list for a distributed MPICH program.

By: Anonymous

Anonymous — Wed, 28 Dec 2005 19:15:00 +0000

Why not use dsh:
http://www.netfort.gr.jp/~dancer/software/dsh.html