First version of the README.md

Windows/ZabbixAgent/README.md

+# Some scripts to use with Zabbix Agent
+
+## Overview
+This repository contains scripts to
+- Remove all remnants of Zabbix Agent and Zabbix Agent 2
+- Check if Zabbix Agent 2 is running or not, if not copy the configurartion file from the network and replace it in the installation folder and start up the Zabbix Agent 2 service
+
+## Files
+- `CheckAndStartZabbixAgent2.ps1`: Script to check if Zabbix Agent 2 is running or not, if not then copy the configurartion file from the network and replace it in the installation folder and start the Zabbix Agent 2 service.
+- `RemoveZabbix.ps1`: Script to emove all remnants of Zabbix Agent and Zabbix Agent 2.
+
+## Usage
+1. Download `CheckAndStartZabbixAgent2.ps1` and create a new scheduled task run run this regurarly.
+2. Download and run `RemoveZabbix.ps1` to remove all remnants of Zabbix Agent and Zabbix Agent 2.
+
+## Prerequisites
+- PowerShell 5.1 or later.
+
+## Download and install
+
+### Via an automatic One-Liner, that Downloads, installs and clean up
+This one-liner download and install does the following:
+    1. Sets the path to store the script.
+    2. Download the script file to the path.
+    3. Create a scheduled task.
+    
+1. To run the script, you need to temporarily change the PowerShell execution policy to allow script execution. You can do this by using the following one-liner code:
+
+   ```powershell
+   Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass -Force; $scriptPath = "C:\Windows\System32\Tasks\CheckAndStartZabbixAgent2.ps1"; Invoke-WebRequest -Uri "https://gitlab.liu.se/andli86/snippets/-/raw/master/Windows/ZabbixAgent/CheckAndStartZabbixAgent2.ps1" -OutFile $scriptPath; schtasks /create /tn "CheckAndStartZabbixAgent2" /tr "powershell.exe -File $scriptPath" /sc hourly /mo 3 /ru SYSTEM;
+   ```
+
+## Manual Installation
+1. **Download the script file to the computer, I prefer to the `C:\Windows\System32\Tasks\` folder**:
+   ```
+   https://gitlab.liu.se/andli86/snippets/-/raw/master/Windows/ZabbixAgent/CheckAndStartZabbixAgent2.ps1
+   ```
+
+2. **Configure a Scheduled Task**: Ensure the execution policy allows the script to run.
+
+3. **Test run the script** by manually starting the scheduled task, perhaps with the Zabbix Agent 2 service both Started and Stopped.
+
+When you run the script `CheckAndStartZabbixAgent2.ps1`, it will perform the following actions:
+   1. **Retrive the Domain name**: ...
+   2. **Set the source path for the Zabbix Agent 2 configuration file**: ...
+   3. **Set the target path for the Zabbix Agent 2 configuration file**: ...
+   4. **Check if Zabbix Agent 2 service is running**: Output the Service status...
+      - **Running**: Output "Zabbix Agent 2 is already running. No action needed.". And EXIT the script.
+      - **Stopped**: Call two functions "Copy-ZabbixConfig" and "Start-ZabbixAgent2"
+   6. **Copy-ZabbixConfig function**: Copies the zabbix_agent2.conf file from the source path to the target path.
+   7. **Start-ZabbixAgent2 function**: Starts the "Zabbix Agent 2" service.
+   8. **EXIT**: Exit the script, since we reached the end of the file.
+
+   The script provides informative messages about its actions, such as:
+   - If the Zabbix Agent 2service is running or is stopped.
+   - Copies the the zabbix_agent2.conf file from the source path to the target path.
+   - Starts the "Zabbix Agent 2" service, if it was stopped.
+    
+## Usage
+The scheduled task `CheckAndStartZabbixAgent2` runs the following script `C:\Windows\System32\Tasks\CheckAndStartZabbixAgent2.ps1` every three hours.
+
+## License
+This project is licensed under the MIT License. And is provided as-is without any warranty. Use at your own risk.
+
+## Author
+Andreas Lindemark, Linköping University
+
+## Contact
+For any questions, please contact andreas.lindemark@liu.se.
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