Comments on: Simple Shell Script to Monitoring Disk Space on a Linux Machine http://kedar.nitty-witty.com/blog/simple-shell-script-to-monitoring-disk-space-on-a-linux-machine Kedar's Blog for MySQL and more Fri, 27 Jan 2012 04:35:06 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: to domain name http://kedar.nitty-witty.com/blog/simple-shell-script-to-monitoring-disk-space-on-a-linux-machine/comment-page-1#comment-7 to domain name Mon, 03 May 2010 10:23:26 +0000 http://kedar.nitty-witty.com/blog/?p=40#comment-7 <strong>hi guys...</strong> hi guysI would like to thank you for the efforts you have made in writing this article. I am hoping the same best work from you in the future as well and i have start my own blog now, , thanks for your effort... hi guys…

hi guysI would like to thank you for the efforts you have made in writing this article. I am hoping the same best work from you in the future as well and i have start my own blog now, , thanks for your effort…

]]> By: George http://kedar.nitty-witty.com/blog/simple-shell-script-to-monitoring-disk-space-on-a-linux-machine/comment-page-1#comment-6 George Wed, 17 Mar 2010 17:28:57 +0000 http://kedar.nitty-witty.com/blog/?p=40#comment-6 This works for me on RHEL 5.4 #! /bin/ksh # ######################################################################################## # This scripts monitors the disk space utilization and sends an email to the Admins if # # the amount of disk space for any file system reaches 90% or more. This script will # # run as an hourly cron job. # ######################################################################################## df -h | grep -iv filesystem | while read LINE; do PERC=`echo $LINE | awk '{print $5}' | sed -e 's/%//'` if [ $PERC -gt 90 ]; then echo "The Filesystem ${LINE} on `hostname`" |mail -s "Disk Space Alert" george.moran@aderas.com fi done This works for me on RHEL 5.4
#! /bin/ksh
#
########################################################################################
# This scripts monitors the disk space utilization and sends an email to the Admins if #
# the amount of disk space for any file system reaches 90% or more. This script will #
# run as an hourly cron job. #
########################################################################################
df -h | grep -iv filesystem | while read LINE; do PERC=`echo $LINE | awk ‘{print $5}’ | sed -e ‘s/%//’`
if [ $PERC -gt 90 ]; then
echo “The Filesystem ${LINE} on `hostname`” |mail -s “Disk Space Alert” george.moran@aderas.com
fi
done

]]> By: kedar http://kedar.nitty-witty.com/blog/simple-shell-script-to-monitoring-disk-space-on-a-linux-machine/comment-page-1#comment-5 kedar Wed, 17 Mar 2010 06:43:47 +0000 http://kedar.nitty-witty.com/blog/?p=40#comment-5 Hi Vishwa, Idea in myscript was "grep"ing disk details from df command and using it in script. I'm not into Oracle yet ('d be interested though) but you may for sure grep the oracle daemon or service information in the script. About services being stopped: For mysql if you want to check if it's running or not we have: /etc/init.d/mysqld status Which will report the service status. I think Oracle must be having something like this. Meanwhile I Googled and found that normally people search for ORACLE_SID or pmon: ps -ef|grep $ORACLE_SID|grep -v grep|grep -v ora_|wc –l You may also grep for "pmon", if that is not running you can say Oracle is down. Check below script: #!/bin/sh ret=`ps -fu oracle | grep ora_smon_ | grep -v grep | wc -l` echo $ret if [ $ret -eq 0 ] ; then echo "database down" # Run script here else echo "database up" fi I assume you should find this helpful: orafaq.com/wiki/Scripts. About unauthorized access: I'm not sure how will you detect that or what you meant by that!? If X enters as root user, how will you define that X is unauthorised? It's better to stop unauthorized access by securing your OS settings than detect it later. Hi Vishwa,
Idea in myscript was “grep”ing disk details from df command and using it in script.
I’m not into Oracle yet (‘d be interested though) but you may for sure grep the oracle daemon or service information in the script.

About services being stopped:

For mysql if you want to check if it’s running or not we have:
/etc/init.d/mysqld status
Which will report the service status. I think Oracle must be having something like this.

Meanwhile I Googled and found that normally people search for ORACLE_SID or pmon:
ps -ef|grep $ORACLE_SID|grep -v grep|grep -v ora_|wc –l

You may also grep for “pmon”, if that is not running you can say Oracle is down.

Check below script:
#!/bin/sh

ret=`ps -fu oracle | grep ora_smon_ | grep -v grep | wc -l`
echo $ret
if [ $ret -eq 0 ] ; then
echo “database down”
# Run script here
else
echo “database up”
fi

I assume you should find this helpful: orafaq.com/wiki/Scripts.

About unauthorized access:
I’m not sure how will you detect that or what you meant by that!? If X enters as root user, how will you define that X is unauthorised? It’s better to stop unauthorized access by securing your OS settings than detect it later.

]]> By: Vishwa http://kedar.nitty-witty.com/blog/simple-shell-script-to-monitoring-disk-space-on-a-linux-machine/comment-page-1#comment-4 Vishwa Wed, 17 Mar 2010 06:10:54 +0000 http://kedar.nitty-witty.com/blog/?p=40#comment-4 I am using Oracle Apps 11i My OS is RHEL 4.6. I need to get a email alerts, when there is a critical issues like unauthorized access or services being stopped.. How i can achieve this .. I am using Oracle Apps 11i
My OS is RHEL 4.6.

I need to get a email alerts,

when there is a critical issues like unauthorized access or services being stopped..

How i can achieve this ..

]]>