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Top Forums Shell Programming and Scripting Script to Start services based on dependent services on other AIX machine Post 302874019 by Chubler_XL on Wednesday 13th of November 2013 05:22:25 PM
Old 11-13-2013
Assumption here is that whenever port goes from unserviced to serviced that your script should be run. This script should be started in the background with nohup (perhaps from /etc/init.d):

Code:
while true
do
   if nc -w 2 server2 9999 < /dev/null > /dev/null 2>&1
   then
       # Service is currently running
       [ "$PREV" = "NOT" ]  && /path/to/your/script
       PREV="RUNNING"
  else
      # Service 2 is not running on server2
      PREV="NOT" 
  fi
done

This User Gave Thanks to Chubler_XL For This Post:
 

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PREV(1) 							     [nmh-1.5]								   PREV(1)

NAME
prev - show the previous message SYNOPSIS
prev [+folder] [-showproc program] [-showmimeproc program] [-header | -noheader] [-checkmime | -nocheckmime] [switches for showproc or showmimeproc] [-version] [-help] DESCRIPTION
Prev performs a show on the previous message in the specified (or current) folder. Like show, it passes any switches on to the program named by showproc or showmimeproc, which is called to list the message. This command is almost exactly equivalent to "show prev". Consult the manual entry for show(1) for all the details. FILES
$HOME/.mh_profile The user profile PROFILE COMPONENTS
Path: To determine the user's nmh directory Current-Folder: To find the default current folder showproc: Program to show non-MIME messages showmimeproc: Program to show MIME messages SEE ALSO
show(1), next(1) DEFAULTS
`+folder' defaults to the current folder `-checkmime' `-header' CONTEXT
If a folder is specified, it will become the current folder. The message that is shown (i.e., the previous message in sequence) will become the current message. BUGS
prev is really a link to the show program. As a result, if you make a link to prev and that link is not called prev, your link will act like show instead. To circumvent this, add a profile-entry for the link to your nmh profile and add the argument prev to the entry. MH.6.8 11 June 2012 PREV(1)
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