The UNIX and Linux Forums  

Go Back   The UNIX and Linux Forums > Top Forums > UNIX for Dummies Questions & Answers > Answers to Frequently Asked Questions > Tips and Tutorials
Google UNIX.COM


Tips and Tutorials Helpful articles from our Users.

More UNIX and Linux Forum Topics You Might Find Helpful
Thread Thread Starter Forum Replies Last Post
script running with "ksh" dumping core but not with "sh" simhe02 HP-UX 8 05-22-2008 02:46 AM
How to include RETURN KEY with Background process "&" in Shell Script racbern Shell Programming and Scripting 1 03-11-2008 03:30 AM
#!/bin/sh script fails at StringA | tr "[x]" "[y]" by_tg UNIX for Dummies Questions & Answers 3 02-22-2008 08:17 AM
Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`" Lokesha UNIX for Dummies Questions & Answers 4 12-19-2007 09:52 PM
Pid still alive after "control C" Nicol Shell Programming and Scripting 4 05-11-2005 08:15 AM

 
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 01-08-2005
Neo's Avatar
Neo Neo is offline
Administrator
 

Join Date: Sep 2000
Location: Asia Pacific
Posts: 4,189
My "Bread and Butter" Process Keep Alive Perl Script....

For the newbies, I should have posted this years ago....

Here is the standard (tiny) "bread and butter" perl script (on Linux) I use in my crontab files to insure key processes are alive ( just in case ! ) like httpd, named, sshd, etc.

The example below if for named......

Code:
#!/usr/bin/perl

open(PS,"/bin/ps x|") || die "Can't Open PS";
while(<PS>) {
if (/usr\/sbin\/named/) { close PS; exit;}
}
close PS;
system("/usr/sbin/named");
One of my biggest "server fears" is that sshd will die for some strange reason, so I feel safe knowing that sshd is always running with the script above.

New Linux/UNIX users might find it useful.
Google UNIX.COM
Forum Sponsor
 

Tags
keep alive

Thread Tools
Display Modes




All times are GMT -7. The time now is 07:54 PM.


Powered by: vBulletin, Copyright ©2000 - 2006, Jelsoft Enterprises Limited.
The UNIX and Linux Forums Content Copyright ©1993-2008 The CEP Blog All Rights Reserved -Ad Management by RedTyger Visit The Global Fact Book

Content Relevant URLs by vBSEO 3.2.0