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I created a script which used a thread to keep running every minute. The script is to inform me if there is changes in the public IP. This is the NetCore app:

static void Main(string args)
 
 try
 
 var timer = new System.Threading.Timer(e => CheckIP(), null,
 TimeSpan.Zero, TimeSpan.FromMinutes(1));

 Console.ReadLine();
 
 catch (Exception e)
 
 Console.WriteLine("Error Main(): " + e.Message);
 
 

public static void CheckIP()
 
 try
 !_CurrentIp.Equals(externalip))
 
 _CurrentIp = externalip;
 NotifyChanges(); //Notify me if IP is changed via some HttpClient post
 Console.WriteLine("At: " + DateTime.Now + " 
 
 catch (Exception e) 
 Console.WriteLine("Error (): " + e.Message);
 
 

If I run the script using: dotnet /Users/alvinalvin/Scripts/ReportIP.sh it runs fine. This is the ReportIP.sh:

#!/bin/bash
/usr/local/share/dotnet/dotnet /Users/alvinalvin/Scripts/MyHome/MyHome.dll

Then I use launchd to launch the script when startup. This the /Library/LaunchDaemons/com.startup.plist

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">

<plist version="1.0">

 <dict>

 <key>Label</key>

 <string>com.startup</string>

 <key>ProgramArguments</key>

 <array>

 <string>/Users/alvinalvin/Scripts/ReportIP.sh</string>

 </array>

 <key>RunAtLoad</key>

 <true/>

 <key>KeepAlive</key>

 <true/>

 <key>StandardOutPath</key>

 <string>/tmp/startup.stdout</string>

 <key>StandardErrorPath</key>

 <string>/tmp/startup.stderr</string>

 </dict>

</plist>

The result from the error is this:

(com.startup): Service only ran for 0 seconds. Pushing respawn out by
10 seconds.

I suppose these are the problem:

1. Cannot run app with thread in it


2. Console.ReadLine() is the problem
   because it runs in the background


3. Console.WriteLine() causing the
   problem because there is no console is running

But I am not sure what is happening here. I need help.

Is there a way to achieve this?