Penggunaan disk adalah laporan yang dihasilkan oleh sistem Linux tentang berbagai disk yang tersedia atau dibuat pada memori sekunder. Disk ini juga dikenal sebagai partisi, mereka memiliki sistem file yang terisolasi. Fasilitas ini memberi kita pengukuran berbagai label atau fitur seperti Ruang yang digunakan, Ruang kosong, Sistem file disk, dll. Untuk melihat semua label ini, Linux memiliki beberapa perintah internal yang membantu kita untuk memvisualisasikannya, tetapi itu adalah perintah terminal, dan kita perlu membuat skrip shell untuk pengguna menggunakan perintah tersebut.
yumupdate -y
yum install mailx -y
mailx -V
Test email
echo "This is test email" | mail -s "Test Email" games@gmail.com
Cara 1 -> set threshold at 60%
# vi /opt/script/disk-usage-alert.sh
#!/bin/sh
dusage=$(df -Ph | grep -vE '^tmpfs|cdrom' | sed s/%//g | awk '{ if($5 > 60) print $0;}')
fscount=$(echo "$dusage" | wc -l)
if [ $fscount -ge 2 ]; then
echo "$dusage" | mail -s "Disk Space Alert On $(hostname) at $(date)" example@gmail.com
else
echo "Disk usage is in under threshold"
fi
# vi /opt/script/disk-usage-alert-1.sh
#!/bin/sh
df -Ph | grep -vE '^Filesystem|tmpfs|cdrom' | awk '{ print $5,$1 }' | while read output;
do
echo $output
used=$(echo $output | awk '{print $1}' | sed s/%//g)
partition=$(echo $output | awk '{print $2}')
if [ $used -ge 60 ]; then
echo "The partition \"$partition\" on $(hostname) has used $used% at $(date)" | mail -s "Disk Space Alert: $used% Used On $(hostname)" example@gmail.com
else
echo "Disk space usage is in under threshold"
fi
done
The partition "/dev/mapper/vg_2g-lv_home" on 2g.CentOS7 has used 85% at Wed Feb 24 06:16:14 IST 2021
The partition "/dev/mapper/vg_2g-lv_root" on 2g.CentOS7 has used 67% at Wed Feb 24 06:16:14 IST 2021
Cara 3 -> Spesific Path
# vi /opt/script/disk-usage-alert-2.sh
#!/bin/bash
used=$(df -Ph | grep '/dev/mapper/vg_2g-lv_dbs' | awk {'print $5'})
max=80%
if [ ${used%?} -ge ${max%?} ]; then
echo "The Mount Point "/DB" on $(hostname) has used $used at $(date)" | mail -s "Disk space alert on $(hostname): $used used" example@gmail.com
fi
Output
The partition /dev/mapper/vg_2g-lv_dbs on 2g.CentOS6 has used 82% at Wed Feb 24 06:16:14 IST 2021
Cara 4
#!/bin/sh
path1=$(du -sh /var)
path2=$(du -sh /home)
main(){
echo "Disk Used Pada Server $(hostname) :"
echo ""
echo "$path1"
echo "$path2"
}
main |mail -s "Disk Usage Server $(hostname)- $(date)" sample@gmail.com
Output
Disk Used Pada Server games.com :
760M /var
12K /home
Cara 5
#!/bin/sh
path1=$(du -ch --max-depth=1 /var | sort -h)
main(){
echo "Disk Used Pada Server $(hostname) :"
echo ""
echo "$path1"
}
main |mail -s "Disk Usage Server $(hostname)- $(date)" games@gmail.com
Output
Cara 6
#!/bin/bash
# Set Variables
Today="at $(date '+%H:%M:%S - %d-%b-%y')"
CurrentDate=`date +"%d_%b_%Y"`
IPADDRESS=`hostname -I | awk '{print $1}'`
​
# HTML Table Report
(
echo '<HTML><HEAD><TITLE>Folder Size</TITLE></HEAD>'
echo '<BODY>'
echo '<H3>Folder Size Report Server - '$(uname -n) ip ${IPADDRESS}'</H3>'
echo '<P>Report Generated '${Today}'</P>'
echo '<TABLE BORDER=3 CELLSPACING=2 CELLPADDING=0>'
echo '<TR BGCOLOR=\"#BBFFFF\"> <TH>Size</TH> <TH>Path</TH><//TR>'
​
# Folder Size
ArryCount=0
du -h --max-depth=1 /var |sort -rh|while read Size Path
do
echo '<TR><TD>'$Size'</TD><TD>'$Path'</TD>'
ArryCount=$ArryCount+1
done
) | tee `hostname`_folder_size-$CurrentDate.html
​
# Sending E-Mail Notification
(
echo To: yuby@gmail.com
echo From: admin
echo "Content-Type: text/html;"
echo Subject: Folder Size Report for server `hostname` ip $IPADDRESS
echo
cat `hostname`_folder_size-$CurrentDate.html
) | sendmail -t
echo -e "Report Generation is Completed... \n\a"
Penutup
Sahabat Blog Learning & Doing demikianlah penjelasan mengenai Membuat Alert Disk Space dengan Bash Script. Semoga Bermanfaat . Sampai ketemu lagi di postingan berikut nya.
