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This article mainly introduces how to generate Linux runtime report Bash script, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

What is the uptime command

The uptime command will tell you how long the system has been running. It displays the following information on one line: the current time, how long the system has been running, how many users are currently logged in, and the average system load for the past 1, 5, and 15 minutes.

What is tuptime?

Tuptime is a tool for reporting system history and counting uptime, which can be saved between restarts. It is similar to the uptime command, but the output is more interesting.

1) Bash script to check the running time of the Linux system

The bash script collects all server uptimes and sends the report to the given email address.

Please replace it with your email address instead of ours, otherwise you will not receive the email.

# vi / opt/scripts/system-uptime-script.sh #! / bin/bash > / tmp/uptime-report.outfor host in cat / tmp/servers.txtdoecho-n "$host:" ssh $host uptime | awk'{print $3 camera 4}'| sed's pact is done | column-t > > / tmp/uptime-report.outcat / tmp/uptime-report.out | mail-s "Linux Servers Uptime Report"2daygeek@gmail.com"

Set executable permissions to system-uptime-script.sh.

$chmod + x / opt/scripts/system-uptime-script.sh

Finally, run the bash script to get the output.

# sh / opt/scripts/system-uptime-script.sh

You will receive a report similar to the following.

# cat / tmp/uptime-report.out 192.168.1.5: 2 days192.168.1.6: 15 days192.168.1.7: 30 days192.168.1.8: 7 days192.168.1.9: 67 days192.168.1.10: 130 days192.168.1.11: 23 days2 ) check whether the Linux system has been running Bash scripts for more than 30 days

This bash script collects servers that have been running for more than 30 days and sends the report to the specified email address. You can change the number of days as needed.

# vi / opt/scripts/system-uptime-script-1.sh #! / bin/bash > / tmp/uptime-report-1.out for host in cat / tmp/servers.txtdoecho-n "$host:" ssh $host uptime | awk'{print $3 last 4}'| sed's / / / 'done | column-t > > / tmp/uptime-report-1.outcat / tmp/uptime-report-1.out | awk' $2 > = 30'> / tmp/uptime-report-2.outcat / tmp/uptime-report-2.out | mail-s "Linux Servers Uptime Report"2daygeek@gmail.com"

Set executable permissions to system-uptime-script-1.sh.

$chmod + x / opt/scripts/system-uptime-script-1.sh

Finally, add a cronjob to automatically execute. It will run at 7 o'clock every morning.

# crontab-e 0 7 * / bin/bash / opt/scripts/system-uptime-script-1.sh

Note: you will receive an email reminder at 7 o'clock every morning, which is the details of yesterday.

You will receive a report similar to the following.

# cat / tmp/uptime-report-2.out 192.168.1.7: 30 days192.168.1.9: 67 days192.168.1.10: 130 days Thank you for reading this article carefully. I hope the article "how to generate a Bash script for Linux Runtime report" shared by the editor will be helpful to you. At the same time, I hope you will support and follow the industry information channel. More related knowledge is waiting for you to learn!

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