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Full Discussion: Shell Script to Retry and Exit
Top Forums Shell Programming and Scripting Shell Script to Retry and Exit Post 302472922 by SkySmart on Thursday 18th of November 2010 12:37:17 PM
Old 11-18-2010
Shell Script to Retry and Exit
ok, so I'm trying to add a function to my local script that runs a command on a remote host. The reason why this is needed is that, there are other scripts that run different commands on the same remote host.

so the problem is that many times there are multiple scripts being run on the remote host, which then causes collisions and all the multiple scripts abort with a "Query Timed Out" message. All these scripts connect to port 1040 on the remote host...which is why i guess they time out.

i want to put something in my local script try to run to a command on the remote host three times. during those three times, if it doesn't run into any problems, the script should just break.

if anyone has a better idea than the below please let me know.

thanks

Code:
#!/bin/sh

x=3

while [ $x -le 4 ] ; do

response=`echo "external_cmd backup.sh" | nc -w 3 bogus.godaddy.com 1040`

if [ $? -eq 0 ] ; then

break

elif [ $? -ne 0 ] ; then

response=`echo "external_cmd backup.sh" | nc -w 3 bogus.godaddy.com 1040`

fi

done

this is a nagios script by the way.
 

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LEARN ABOUT OSF1

uudemon.cleanu

uudemon(4)						     Kernel Interfaces Manual							uudemon(4)

NAME

       uudemon.admin,  uudemon.cleanu,	uudemon.hour,  uudemon.poll  -	Administrative shell scripts for polling remote systems, cleaning up spool
       directories, reporting status to the system administrator, and routine invocations of the uuxqt and uusched daemons

SYNOPSIS

       These shell scripts reside in the following directory:
	  /usr/lib/uucp

DESCRIPTION

       All the scripts can be run from the command line or can be run automatically by the cron daemon. To automatically run the  scripts,  remove
       the comment character (#) from the beginning of the relevant line in the /var/spool/cron/crontabs/uucp file.

       This  script  reports  status  to  the system administrator. It issues the uustat command to find out the status of uucp jobs. It mails the
       results to the uucp login ID. The script may be modified to send mail to any login ID such as the uucp administrative login ID  (uucpa)	or
       root.  This script cleans up the /var/spool/uucp and /var/spool/uucppublic directories by running the uucleanup command. The uucleanup com-
       mand is run with the following parameters: -C7, -D7, X2, -o2, -W1.  This script runs the uusched and uuxqt daemons in the background.  This
       script  polls  the  systems  listed  in	the  /usr/lib/uucp/Poll file.  The uudemon.poll script should be scheduled before the uudemon.hour
       script. This allows uudemon.poll to create any command files before cron runs the uudemon.hour script.

FILES

       Contains the uudemon.admin, uudemon.cleanu, uudemon.hour and uudemon.poll files.  Contains the uucp file.

RELATED INFORMATION

       Commands: cron(8), uucleanup(8), uusched(8), uuxqt(1)

       Files: /usr/lib/uucp delim off

																	uudemon(4)
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