I need to create a cronjob which will check disk space an e-mail the result to me.

Could someone help me? I have been looking high and low and tried several different finds from Google but best I can get is a script to run but never e-mails me so assuming I have something wrong. Once successful then need to setup a daily cronjob to email df -h results.

I also man cronjob and still having problms. I thought I had this down but I'm wrong.

Any help is greatly appreciate.

I'm running:
Red Hat Enterprise Linux

Here's the closet I have that doesn't create errors but never send e-mail.


#!/bin/sh
df -H | grep -vE '^Filesystem|tmpfs|cdrom' | awk '{ print $5 " " $1 }' | while read output;
do
echo $output
usep=$(echo $output | awk '{ print $1}' | cut -d'%' -f1 )
partition=$(echo $output | awk '{ print $2 }' )
if [ $usep -ge 1 ]; then
echo "Running out of space \"$partition ($usep%)\" on $(hostname) as on $(date)" |
mail -s "Disk Check $usep%" me@me.com
fi
done

Try
set -xv
at the top of your script and run by hand. It'll show you what's really happening.
For one thing, $usep and $uesp% are 2 diff vars(!). Try ${usep}%

Put the script at /etc/cron.daily/

Then, edit crontab
-> vi /etc/crontab
-> input MAILTO=root
-> save the file

Or

Create a file at /etc/cron.d/check-space
-> vi check-space
-> input the following
MAILTO=root
10 1 * * * root /etc/cron.daily/script
-> save the file

Try this...Hope can help

Looked quickly and have MailTo=root

Here's my crontab

SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
HOME=/

# run-parts
01 * * * * root run-parts /etc/cron.hourly
02 4 * * * root run-parts /etc/cron.daily
22 4 * * 0 root run-parts /etc/cron.weekly
42 4 1 * * root run-parts /etc/cron.monthly
~
~
~
~
~
~
~
~
~
~
~
~
~
"/etc/crontab" 10L, 255C



Going to see what set -xv and chaging the var. Should I be looking at something with MTA/mail server as well?

For your case, if you just want to know the disk space daily, i suggest installing logwatch would be helpful.

Logwatch provides server information daily to root.

Please make sure your server can send mail to yourself.

Here's the details ... Thanks all for helping me!
# ./df.sh
df -H | grep -vE '^Filesystem|tmpfs|cdrom' | awk '{ print $5 " " $1 }' | while read output;
do
echo $output
usep=$(echo $output | awk '{ print $1}' | cut -d'%' -f1 )
partition=$(echo $output | awk '{ print $2 }' )
if [ $usep -ge 1 ]; then
echo "Running out of space \"$partition ($usep%)\" on $(hostname) as on $(date)" |
mail -s "Disk Check $usep%" me@me.com
fi
done
+ df -H
+ grep -vE '^Filesystem|tmpfs|cdrom'
+ awk '{ print $5 " " $1 }'
+ read output
+ echo 60% /dev/sda3
60% /dev/sda3
echo $output | awk '{ print $1}' | cut -d'%' -f1
++ echo 60% /dev/sda3
++ awk '{ print $1}'
++ cut -d% -f1
+ usep=60
echo $output | awk '{ print $2 }'
++ echo 60% /dev/sda3
++ awk '{ print $2 }'
+ partition=/dev/sda3
+ '[' 60 -ge 1 ']'
+ mail -s 'Disk Check 60%' me@me.com
hostname
++ hostname
date
++ date
+ echo 'Running out of space "/dev/sda3 (60%)" on me.net as on Thu Feb 14 02:55:59 EST 2008'
+ read output
+ echo 16% /dev/sda1
16% /dev/sda1
echo $output | awk '{ print $1}' | cut -d'%' -f1
++ echo 16% /dev/sda1
++ awk '{ print $1}'
++ cut -d% -f1
+ usep=16
echo $output | awk '{ print $2 }'
++ echo 16% /dev/sda1
++ awk '{ print $2 }'
+ partition=/dev/sda1
+ '[' 16 -ge 1 ']'
+ mail -s 'Disk Check 16%' me@me.com
hostname
++ hostname
date
++ date
+ echo 'Running out of space "/dev/sda1 (16%)" on me.net as on Thu Feb 14 02:55:59 EST 2008'
+ read output
+ echo 100% /dev/sda5
100% /dev/sda5
echo $output | awk '{ print $1}' | cut -d'%' -f1
++ echo 100% /dev/sda5
++ awk '{ print $1}'
++ cut -d% -f1
+ usep=100
echo $output | awk '{ print $2 }'
++ echo 100% /dev/sda5
++ awk '{ print $2 }'
+ partition=/dev/sda5
+ '[' 100 -ge 1 ']'
hostname
++ hostname
+ mail -s 'Disk Check 100%' me@me.com
date
++ date
+ echo 'Running out of space "/dev/sda5 (100%)" on me.net as on Thu Feb 14 02:55:59 EST 2008'
+ read output
+ echo 0% none
0% none
echo $output | awk '{ print $1}' | cut -d'%' -f1
++ echo 0% none
++ awk '{ print $1}'
++ cut -d% -f1
+ usep=0
echo $output | awk '{ print $2 }'
++ echo 0% none
++ awk '{ print $2 }'
+ partition=none
+ '[' 0 -ge 1 ']'
+ read output
+ echo 7% /dev/sdb1
7% /dev/sdb1
echo $output | awk '{ print $1}' | cut -d'%' -f1
++ echo 7% /dev/sdb1
++ awk '{ print $1}'
++ cut -d% -f1
+ usep=7
echo $output | awk '{ print $2 }'
++ echo 7% /dev/sdb1
++ awk '{ print $2 }'
+ partition=/dev/sdb1
+ '[' 7 -ge 1 ']'
hostname
++ hostname
date
++ date
+ echo 'Running out of space "/dev/sdb1 (7%)" on me.net as on Thu Feb 14 02:55:59 EST 2008'
+ mail -s 'Disk Check 7%' me@me.com
+ read output

How much is logwatch?

What would be the easiest way to see if the server can send mail to me.

Logwatch is a free software tool in linux.

You can install it using the command below
-> yum install logwatch

When I run yum install logwatch it's not valid.

I tried I tried to run a simple test and watch the message...

I ran:

echo "testing" | mail -s "just a test" helpme@help.com





I see the following.....

Feb 14 09:29:45 server sendmail[21636]: m1EETjGj021636: to=helpme@help.com, ctladdr=root (0/0), delay=00:00:00,

xdelay=00:00:00, mailer=relay, pri=30054, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (m1EETjoS021638 Message

accepted for delivery)



Feb 14 09:30:45 server sendmail[21640]: m1EETjoS021638: to=<helpme@help.com>, ctladdr=<root@server.net> (0/0), delay=00:01:00, xdelay=00:01:00, mailer=esmtp, pri=30316, relay=help.com. [24.154.1.11], dsn=4.0.0, stat=Deferred: Connection timed out with help.com.

Finally got it to work. Had to configure "Smart".

Thanks all!