The message you're seeing appears to be indicating that a script named "userinit.sh" has been added to your system's login items, and can run in the background when your system starts up. This could be a legitimate operation by a software that you've recently installed, or it could potentially be something unwanted.
"Userinit.sh" is a common name for an initialization script in Unix-based systems like Linux or MacOS. The ".sh" extension suggests it is a shell script, a type of script that can automate tasks and execute different commands on your computer.
To understand what exactly this script is doing, you'd need to view its contents. Be careful not to execute it if you're not sure what it does. Here's how you could view its contents in a terminal:
1. Open Terminal.
2. Type `cat /path/to/your/script/userinit.sh` (Replace "/path/to/your/script/" with the actual path of the script.)
3. Press Enter.
This command will display the contents of the script on the screen. If you're comfortable with shell scripts, you can read and understand what it does. If not, you could share the script with someone knowledgeable who can help.
To manage this item, you can go to your system's Login Items Settings (how to get there depends on your specific operating system). From there, you should be able to enable, disable, or delete this item.
If you didn't intentionally install anything recently that would add a script like this to your startup items, or if you find that the script does something you don't want, it's possible that this could be a piece of unwanted software or even malware. In that case, you should consider running a system scan with Malwarebytes for Mac.