Re: Learning Scripting

["Anil Gupte" <anil-list@icinema.com>]

Thanx, Michael and Andrew.  Here is my first usable shell script, thanx to your 
help.

The idea was the system cannot start the X-Server sometimes when the power goes 
off unexpectedly.  So, if an error message is found the system should be 
shutdown nicely and then when it reboots, it runs an fsck and cleans up.

The second set of checks is because sometimes the grep command itself appears in 
the ps ax, and we do not want to reboot for this spurious occurrence.

#!/bin/sh

msg1="/etc/gdm/XKeepsCrashing -noopen"
msg2="yesno I cannot start the X server"

check1=$(ps ax | grep -i "$msg1")
count1=${#check1}
check10=$(echo $check1 | grep -i "grep")
count10=${#check10}

check2=$(ps ax | grep -i "$msg2")
count2=${#check2}
check20=$(echo $check2 | grep -i "grep")
count20=${#check20}

if [ $count10 -gt 0 ]
then
   count1=0
fi

if [ $count20 -gt 0 ]
then
   count2=0
fi

if [ $count1 -gt 0 ] || [ $count2 -gt 0 ]
 then
   echo "Found it!"
   shutdown -r now
 else
   echo "Not found!"
fi


Anil Gupte
www.keeninc.net
www.icinema.com

----- Original Message ----- 
From: "Andrew Sackville-West" <andrew@farwestbilliards.com>
To: <debian-user@lists.debian.org>
Sent: Monday, May 15, 2006 11:29 PM
Subject: Re: Learning Scripting