If you are running a busy server with several customers, uploading alot of file then there is a chance that you get out of space without knowing. I was about to write a script for my server but then found it on a famous website.
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#!/bin/sh # Shell script to monitor or watch the disk space # It will send an email to $ADMIN, if the (free avilable) percentage # of space is >= 90% # ------------------------------------------------------------------------- # Copyright (c) 2005 nixCraft project # This script is licensed under GNU GPL version 2.0 or above # ------------------------------------------------------------------------- # This script is part of nixCraft shell script collection (NSSC) # Visit http://bash.cyberciti.biz/ for more information. # ---------------------------------------------------------------------- # Linux shell script to watch disk space (should work on other UNIX oses ) # SEE URL: http://www.cyberciti.biz/tips/shell-script-to-watch-the-disk-space.html # set admin email so that you can get email ADMIN="[email protected]" # set alert level 90% is default ALERT=90 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 $ALERT ]; then echo "Running out of space \"$partition ($usep%)\" on $(hostname) as on $(date)" | mail -s "Alert: Almost out of disk space $usep%" $ADMIN fi done |
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nano -w /etc/cron.daily/diskalert |
Paste above script and save file.
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chmod +x /etc/cron.daily/diskkalert |
Now script will run daily and send you email if disk space will be 90%
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