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Full Discussion: Run a command on multiple hosts
Top Forums Shell Programming and Scripting Run a command on multiple hosts Post 302966971 by gandolf989 on Thursday 18th of February 2016 10:20:55 AM
Old 02-18-2016
You might find it easier to write a bash script that does what you want it to do,
scp it to each of the servers, then run that script remotely with the '-C' parameter.
Here is some sample code.

Code:
for line in `cat ${HOME}/hosts.txt`
do
   ssh $line -C "/home/myuser/myscript.sh"
   scp $line:/home/myuser/myscript.log myscript_${line}.log
done

You should use the exec command to redirect all of the output to a log file.
Then you can copy the log file back and look at it after the script finishes
on all of the servers.

Code:
#!/bin/bash
exec >/home/myuser/myscript.log
exec 2>&1
# do some stuff
exec 1>&-
exec 2>&-

You should also look at your .bashrc and .bash_profile scripts on the third
server to see if there is anything weird going on. Finally are you running a
different OS on the third system than the first two. If that OS is older that
might explain why it doesn't work there.
This User Gave Thanks to gandolf989 For This Post:
svajhala
 

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LEARN ABOUT SUNOS

check-hostname

check-hostname(1M)					  System Administration Commands					check-hostname(1M)

NAME

       check-hostname - check if sendmail can determine the system's  fully-qualified host name

SYNOPSIS

	/usr/sbin/check-hostname

DESCRIPTION

       The   check-hostname script is a migration aid for sendmail(1M).  This script tries to determine the local host's fully-qualified host name
       (FQHN) in a manner similar to  sendmail(1M). If	check-hostname is able to determine the FQHN of the local host, it reports success. Other-
       wise,  check-hostname reports how to reconfigure the system so that the	FQHN can be properly determined.

FILES

       /etc/hosts	       Host name database

       /etc/nsswitch.conf      Name service switch configuration file

       /etc/resolv.conf        Configuration file for name server routines

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWsndmu 		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       sendmail(1M), hosts(4), attributes(5)

SunOS 5.10							    10 Nov 2003 						check-hostname(1M)
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