Linux shell script detects hard disk space mail alerts

Using http://www.weiruoyu.cn/?p=368

Shell script monitors hard disk space remaining space email alerts

1. First look at the disk, and how to use the script

1. [[email protected] ~]# df -h
2. File System                 capacity    used   available   used%  mount point
3. /dev/mapper /volgroup00-logvol00
4.                        8.9g  2.6g  5.9g  31%  /
5. /dev/sda1               99m   13m   82m  13% /boot
6. tmpfs                  188M      0  188M   0% /DEV/SHM
7. [[EMAIL PROTECTED] ~]# DF  -h |sed -n  ' 3p ' |awk  ' {print $4} ' |cut -f 1 -d  '% '
8. 31

2. Script (more than 70% alarms)

1. #!/bin/bash
2. disk_sda1=df -h |sed -n ‘3p‘|awk ‘{print $4}‘|cut -f 1 -d ‘%‘
3. If
4. ((disk_sda1 > 70));
5. Then
6. echo date "192.168.56.128" 70% "|mail-s" Disk over 70% "[email protected],[email protected]
7. Fi

Script Backup (full test shell script)

1. #!/bin/bash
2. disk_sda1=df -h |sed -n ‘3p‘|awk ‘{print $4}‘|cut -f 1 -d ‘%‘
3. If
4. ((disk_sda1 > 80));
5. Then
6. echo "This is error"
7. echo date "192.168.56.128" 70% "|mail-s" Disk over 70% "[email protected],[email protected]
8. Else
9. echo "This is OK"
10. Fi

3. Scheduled Tasks

1. [Email protected] tmp]# CRONTAB-E

Add to

3-hour Check

1. * */3 * * */var/tmp/check_disk.sh

Or a 10-minute check.

1. */10 * * * */var/tmp/check_disk.sh

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Linux shell script detects hard disk space mail alerts