#!/bin/bash
#admin email account
ADMIN="mymailid@domain.com"
# set usage alert threshold
THRESHOLD=95
#hostname
HOSTNAME=$(hostname)
#mail client
MAIL=/bin/mail
# store all disk info here
EMAIL=""
for line in $(df -hP | egrep '^/dev/' | awk '{ print $6 "_:_" $5 }')
do
part=$(echo "$line" | awk -F"_:_" '{ print $1 }')
part_usage=$(echo "$line" | awk -F"_:_" '{ print $2 }' | cut -d'%' -f1 )
if [ $part_usage -ge $THRESHOLD -a -z "$EMAIL" ];
then
EMAIL="$(date): Running out of diskspace on $HOSTNAME\n"
EMAIL="$EMAIL\n$part ($part_usage%) >= (Threshold = $THRESHOLD%)"
elif [ $part_usage -ge $THRESHOLD ];
then
EMAIL="$EMAIL\n$part ($part_usage%) >= (Threshold = $THRESHOLD%)"
fi
done
if [ -n "$EMAIL" ];
then
echo -e "$EMAIL" | $MAIL -s "Alert: Partition(s) almost out of diskspace on $HOSTNAME" "$ADMIN"
fi
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