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sources/tech/20190801 Bash Script to Send a Mail When a New User Account is Created in System.md → translated/tech/20190801 Bash Script to Send a Mail When a New User Account is Created in System.md
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@ -7,34 +7,34 @@
[#]: via: (https://www.2daygeek.com/linux-bash-script-to-monitor-user-creation-send-email/)
[#]: author: (Magesh Maruthamuthu https://www.2daygeek.com/author/magesh/)
Bash Script to Send a Mail When a New User Account is Created in System
在系统创建新用户时发送邮件的 Bash 脚本
======
There are many open source monitoring tools are currently available in market to monitor Linux systems performance.
目前市场上有许多开源监测工具可用于监控 Linux 系统的性能。
It will send an email alert when the system reaches the specified threshold limit.
当系统到达指定的阈值时，它将发送邮件提醒。
It monitors everything such as CPU utilization, Memory utilization, swap utilization, disk space utilization and much more.
它会监控 CPU 利用率、内存利用率、交换内存利用率、磁盘空间利用率等所有内容。
But i don’t think they have an option to monitor a new user creation activity and alert when it’s happening.
但我不认为他们可以选择监控新用户创建活动，并发送提醒。
If not, it doesn’t really matter as we can write our own bash script to achieve this.
如果没有，这并不重要，因为我们可以编写自己的 bash 脚本来实现这一点。
We had added many useful shell scripts in the past. If you want to check those, navigate to the below link.
我们过去写了许多有用的 shell 脚本。如果要查看它们，请点击以下链接。
* **[How to automate day to day activities using shell scripts?][1]**
* **[如何使用 shell 脚本自动化执行日常任务？][1]**
What the script does? It monitors **`/var/log/secure`**` ` file and alert admin when a new account is created in system.
脚本做了什么？它监测 **`/var/log/secure`** 文件，并在系统创建新帐户时提醒管理员。
We can’t run this script frequently since user creation is not happening very often. However, I’m planning to run this script once in a day.
我们不会经常运行此脚本，因为创建用户不经常发生。但是，我打算一天运行一次这个脚本。
So, that we can get a consolidated report about the user creation.
因此，我们可以获得有关用户创建的综合报告。
If useradd string was found in “/var/log/secure” file for yesterday’s date, then the script will send an email alert to given email id with new users details.
如果在昨天的 “/var/log/secure” 中找到了 useradd 字符串，那么该脚本将向指定的邮箱发送邮件提醒，其中包含了新用户的详细信息。
**Note:** You need to change the email id instead of ours.
**注意：**你需要更改邮箱而不是使用我们的邮箱。
```
# vi /opt/scripts/new-user.sh
@ -77,13 +77,13 @@ rm $MESSAGE
fi
```
Set an executable permission to **`new-user.sh`**` ` file.
给 **`new-user.sh`** 添加可执行权限。
```
$ chmod +x /opt/scripts/new-user.sh
```
Finally add a cronjob to automate this. It will run everyday at 7'o clock.
最后添加一个 cron 任务来自动化执行它。它会在每天 7 点运行。
```
# crontab -e
@ -91,9 +91,9 @@ Finally add a cronjob to automate this. It will run everyday at 7'o clock.
0 7 * * * /bin/bash /opt/scripts/new-user.sh
```
Note: You will be getting an email alert everyday at 7 o'clock, which is for yesterday's log.
注意：你将在每天 7 点收到一封邮件提醒，但这是昨天的日志。
**`Output:`**` ` You will be getting an email alert similar to below.
你将会看到类似下面的邮件提醒。
```
# cat /tmp/logs.txt
@ -113,7 +113,7 @@ via: https://www.2daygeek.com/linux-bash-script-to-monitor-user-creation-send-em
作者：[Magesh Maruthamuthu][a]
选题：[lujun9972][b]
译者：[译者ID](https://github.com/译者ID)
译者：[geekpi](https://github.com/geekpi)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出