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We will now use shell scripting to help automate the task for a Linux administrator to be notified of potential disk space issues.
#Perform this section in your '''c7host''' machine
#Make certain you are logged in as '''root'''.
#Download, study, and run the following shell script. Issue the command:<br><b><code><span style=" pointer-events:none;cursor:default;color:#3366CC;font-size:1.2em;">wget https://scs.senecac.on.ca/~murray.saul/monitor-disk-space.bash</span></code></b>
<br><br>
<ol>
<li value="45">Quickly view the tutorial about the <b>[http://v1.corenominal.org/howto-setup-a-crontab-file/ Using crontab]</b> file to understand the purpose of this
file and how to basically set up a schedule to run a shell script.</li>
<li>Issue the following command to setup a crontab entry for root:<br><b><code><span style=" pointer-events:none;cursor:default;color:#3366CC;font-size:1.2em;">crontab -e</span></code></b></li><li>Enter the following line in order to run at 6:00 on the first day of every month:<br><b><code><span style=" pointer-events:none;cursor:default;color:#3366CC;font-size:1.2em;">0 6 1 * * /root/monitor-disk-space.bash #Runs at 6:00 am on the first day of every month</span></code></b></li><li>Save the file entry.</li><li>Confirm that the entry was properly saved by issuing the following command:<br><b><code><span style=" pointer-events:none;cursor:default;color:#3366CC;font-size:1.2em;">crontab -l</span></code></b></li></ol>
