Low disk space alert bash script

Linux command

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cd /home/

vi disk_space_alert.sh

write into this bash script as follows

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#!/bin/bash

#Define Variable
LIMIT='90'
DOMAIN=$(hostname)
DIR='/var/www'
MAILTO='hanamitsu_makoto@number-1.co.jp,saiful_takeshi@number-1.co.jp'
SUBJECT="Disk Usage Alert[$DOMAIN]"

#Command section
cd $DIR
USED=`df . |awk '{print $5}' | sed -ne 2p | cut -d"%" -f1`
DIRLIST=`du -sh ${DIR}/*`

if[ $USED -gt $LIMIT ]

then
 mail -s "$SUBJECT" $MAILTO <<EOF
 Hostname: $DOMAIN
 Your current used disk space is: $USED%
 Directory:${DIR}/*
 Details:
 $DIRLIST

DateTime: $(date)
EOF

fi

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save file commadn

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😡

make the file as executable

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chmod +x disk_space_alert.sh

run this file

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sh disk_space_alert.sh

 

 

corntab file

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#毎日10時00分に実行する
#ユーザー：root

00 10 * * * root /home/disk_space_alert.sh

 

zip file download