The below script will check the hard disk space usage, using the command du and send an email alert if any of the partition is using more than 85% of space. vim disk-usage.sh #!/bin/sh df -H | grep -vE '^Filesystem|tmpfs|cdrom' | awk '{ print $5 " " $1 }' | while read output; do echo $output usep=$(echo $output | awk '{ print ...