Automatic Emails For Full Drives In Debian

March 26, 2016

I have a VPS which I use for storing backups and running some of my projects. This VPS recently filled up, leading to lots of problems. I went looking for a solution which would email automatically whenever a drive starts getting full. I found a bash script online which I modified a bit; I added the hostname to the email is sends and set a lower threshold than the original script. Here is what I ended up with in ~/send_email_if_drive_full.sh #!/bin/bashCURRENT=$(df / | grep / | awk '{ print $5}' | sed 's/%//g')THRESHOLD=75if [ “$CURRENT” -gt “$THRESHOLD” ] ; then mail -s ‘Disk Space Alert’ chris.j.trowbridge@gmail.com << EOF vps1.cjtrowbridge.com Your root partition remaining free space is critically low. Used: $CURRENT% EOF fi Then I added this to the crontab; 0 0 * * 0       root    bash /root/send_email_if_drive_full.sh