Good catch....not sure how I missed that! (Too many things going on.
THANKS!
Frank M. Ramaekers Jr.
Systems Programmer MCP, MCP+I, MCSE & RHCE
American Income Life Insurance Co. Phone: (254)761-6649
1200 Wooded Acres Dr. Fax: (254)741-5777
Waco, Texas 76710
-----Original Message-----
From: centos-bounces@xxxxxxxxxx [mailto:centos-bounces@xxxxxxxxxx] On
Behalf Of Alan Sparks
Sent: Tuesday, September 29, 2009 10:27 AM
To: CentOS mailing list
Subject: Re: Script consumes memory
Perhaps I'm missing it, but where are your definitions of DIRNAME and
BASENAME?
Without them, you're probably re-executing the script in the bactick
references. Basically a fork-bomb.
-Alan
Frank M. Ramaekers wrote:
> I have the following script that when executed, consumes memory and
> makes the system inaccessible. All process are halted.
>
> First, I don't understand what is wrong with the script
> Secondly, I'm surprised that Linux allows this to run unchecked to the
> detriment of the entire system.
>
> ---- SCRIPT -----
> #!/bin/sh
> FTP="/usr/bin/ftp"
> #
> VMID="asystem.ourcompany.com"
> VMUser="STATDASD"
> VMPass="STATDASD"
> VMDir="VMSYSA:."
> DataFile="data.txt"
> VMFile="DS8100.DATA"
> #--- Get some information about me
> #--work from the same directory as the script
> MYSCRIPT=`$BASENAME $0`
> MYSCRIPTDIR=`$DIRNAME $0`
> if [ $MYSCRIPTDIR != "." ]
> then
> cd $MYSCRIPTDIR
> fi
> #--- FTP to MAINT on mkmfvm
> $FTP -vn <<$$EOD
> open $VMID
> user $VMUser $VMPass
> cd $VMDir
> ascii
> put $DataFile $VMFile
> bye
> $$EOD
>
> Frank M. Ramaekers Jr.
> Systems Programmer MCP, MCP+I, MCSE & RHCE
> American Income Life Insurance Co. Phone: (254)761-6649
> 1200 Wooded Acres Dr. Fax: (254)741-5777
> Waco, Texas 76710
>
>
>
>
>
>
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