How to implement a Shell script that monitors disk usage
This article will explain in detail the Shell script on how to monitor disk usage. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.
Monitordisk.sh is as follows
The code is as follows:
#! / bin/bash
# Updated:2008-03-03 PM By:leif (liangliwen@163.com)
EMAIL=/usr/local/bin/email
/ bin/df-h > / tmp/df.txt
USE= `df-H | grep-o [0-9] *% | grep-o'[0-9]\ +'`
For i in $USE
Do
If (($I > 95))
Then
$EAMIL-s "WARNING Low disk space for $I" liangliwen@163.com break
Fi
If (($I > 90))
Then
$EMAIL-s "Low disk space for $I" liangliwen@163.com fi
Done
/ bin/rm-f / tmp/df.txt
To achieve the goal, any partition will send an email to the designated recipient when it reaches 90%, and a warning (warning) will be issued on the subject of the email at 95%, indicating that the email program EMAIL is downloaded and installed from http://www.cleancode.org/projects/email, which is more flexible.
Put this shell in the crontab implementation to check the disk condition regularly as needed.
The following is a supplementary content:
Shell script to monitor remote host disk usage, filename: disklog.sh
The code is as follows:
#! / bin/bash
# File name: disklog.sh
# purpose: monitor disk usage of remote systems
Logfile= "diskusage.log"
If [[- n $1]]
Then
Logfile=$1
If
If [!-e $logfile]
Then
Printf "%-8s%-14s%-9s%-8s%-6s%-6s%-6s%\ n" Date "," IP ADDRESS "," Device "," Capacity "," Used "," Free "," Percent "," Status "> $logfile
Fi
IP_LIST= "127.0.0.1 0.0.0.0"
# provide remote host IP address list
(
For ip in $IP_LIST
Do
Ssh slynux@$ip'df-H' | grep ^ / dev/ > / tmp/$$.df
While read line
Do
Cur_date=$ (date +% D)
Printf "%-8s%-14s" $cur_date $ip
Echo $line | awk'{printf ("%-9s%-8s%-6s%-6s%-8s", $1mine2);}'
Pusg=$ (echo $line | egrep-o "[0-9] +%")
Pusg=$ {pusg/\% /}
If [$pusg-lt 80]
Then
Echo SAFT
Else
Echo ALERT
Fi
Done
< /tmp/$$.df done )>> $logfile
We can use cron to schedule script execution at regular intervals, such as adding an entry like this to crontab to run the script automatically at 10:00 every morning:
00 10 * / home/sh/disklog.sh / home/log/diskusg.log
Execute the crontab-e command, add the above line, and save it.
You can also perform it manually:
$. / disklog.sh
This is the end of this article on "how to implement a Shell script for monitoring disk usage". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.
