From owner-freebsd-questions  Thu Apr 24 07:02:13 1997
Return-Path: <owner-questions>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.5/8.8.5) id HAA07517
          for questions-outgoing; Thu, 24 Apr 1997 07:02:13 -0700 (PDT)
Received: from md.zyga.com ([204.192.12.2])
          by hub.freebsd.org (8.8.5/8.8.5) with SMTP id HAA07509
          for <questions@freebsd.org>; Thu, 24 Apr 1997 07:02:05 -0700 (PDT)
Received: from gold.zyga.com ([204.192.12.107]) by md.zyga.com (8.6.11/8.6.9) with SMTP id JAA11999; Thu, 24 Apr 1997 09:07:14 GMT
Received: by gold.zyga.com with Microsoft Mail
	id <01BC50FB.EB7A3780@gold.zyga.com>; Thu, 24 Apr 1997 22:07:37 -0400
Message-ID: <01BC50FB.EB7A3780@gold.zyga.com>
From: Deion Christopher Smith <dsmith@zyga.com>
To: Dan Wolfe <DWolfe@zyga.com>, "'leec@adonai.net'" <leec@adonai.net>
Cc: "'questions@freebsd.org'" <questions@freebsd.org>,
        "'dsmith@zyga.com'"
	 <dsmith@zyga.com>
Subject: RE: Cron jobs
Date: Thu, 24 Apr 1997 22:07:36 -0400
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Sender: owner-questions@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

Thanks!

Dan, I told you it was a 10 liner, I just want to look up old refs. on fine tuning a kron.

Deion

----------
From: 	Lee Crites[SMTP:leec@adonai.net]
Sent: 	Wednesday, April 23, 1997 6:50 PM
To: 	Dan Wolfe
Cc: 	'questions@freebsd.org'; 'dsmith@zyga.com'
Subject: 	Re: Cron jobs

Dan Wolfe wrote:
> 
> FreeBSD Users:
> 
> Has anyone written a script to periodically check if a particular process is running, and if not, restart it?
> 
> -Dan Wolfe
> ZYGA Corporation

Try this script on for size, it's working for me, anyway...

#!/bin/csh -f
#
# check for program and start it if it is not found
#
  echo "Check/starting process"

#
# program name should be $1
#
  if ($1 == "") then
    echo "usage: $0 program-to-check"
    exit
    endif

  set STR = $1
  echo " -- starting "$STR

#
# see if it is running and start it if needed
#
  if (`ps -aux|grep -v grep|grep -c $STR` == 0) then

    echo " -- starting process"
    $STR >>& /dev/null &

  else

    echo " -- process already running"

  endif

#
# done
#