Centos7 regularly sends the linux system status by email

# Vim/etc/mail. rc adds the following two lines at the end of the document: setfrom = *** @ 163. comsmtp = smtp.163.comsetsmtp-auth-user = *** @ 163. comsmtp-auth-password = *** smtp-auth = a line of command below login to test whether an email can be sent to *** @ qq.com # cat

# Vim/etc/mail. rc

Add the following lines at the end of the document:

Set from = *** @ 163.com smtp = smtp.163.com

Set smtp-auth-user = *** @ 163.com smtp-auth-password = *** smtp-auth = login

The following line tests whether an email can be sent to *** @ qq.com

# Cat/etc/passwd | mail-s "system statue" 173056183@qq.cm

# Vim/root/space. sh

Mail-s "system status" 275807981@qq.com <EOF

'Echo "----------- mysql data space use -----------"

Du-h/mydata

Echo "----------- home data space use -----------"

Du-h/home-d 1

Echo "----------- cpu load -----------"

Uptime

Echo "---------- who is login ----------"

Who

Echo "---------- mem swap -----------"

Free-H'

EOF

Prepare and execute tasks

# Vim/etc/crontab

Add the following line at the end of the document and execute it once a day

0 1 *** root sh/root/spaceuse. sh

The effect is as follows: