Shell script Instance-memory disk usage warning

1, disk use warning and send mail

#!usr/bin/bash

#df-th|grep '/$ ' This is the record that gets the memory used

#后面两句是获取内存的使用率

disk= ' df-th|grep '/$ ' |awk ' {print $ (NF-1)} ' |awk-f '% ' ' {print '} '

Mail_user=natasha

If [$disk-ge];then

echo "' Date +%f-%h ' disk:${disk}%" |mail-s "Disk war ..." $mail _user

Fi

2, Memory usage warning and sending mail

#!/usr/bin/bash

Mem_used= ' Free-m|grep ' ^mem: ' |awk ' {print $} '

Mem_total= ' Free-m|grep ' ^mem: ' |awk ' {print $} '

mem_per=$ ((mem_used*100/mem_total))

War_file=/tmp/mem_war.txt

RM-RF $war _file# This step is to prevent this file from being present the next time you execute the script

If [$mem _per-ge 2];then

echo "' Date +%f-%h ' memory:${mem_per}%" > $war _file

Fi

If [-F $war _file];then

Mail-s "Mem war ..." Root < $war _file

Fi

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Chen Zhike (Headline number: the strong twist of the melon is not delicious currently working in China's largest android application software company, as a senior engineer , now the company is a PHP development engineer, Python development engineer, senior Operations engineer, the public number "pencil school" operation and maintenance of content co-author. *
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Shell script Instance-memory disk usage warning