I love developing software on my MacBook Air! I got the latest version with the maximum possible specifications (i7, 8GB internal mem, 512GB SSD disk) so it works better than anything I ever had!

One of the things i was missing (a  lot) while developing is that I cannot start 2 instances of the same application on a Mac. In Windows I normally have 2 or 3 instances of Visual Studio open so I can work on several projects / solutions at the same time.

This way of working is not as easy on a Mac as it is in Windows. If you want to do this you should use the terminal command open using the -n switch. The description of the -n switch for the open command is

open -n  Open a new instance of the application(s) even if one is already running.

Now every time opening a terminal window and typing this command is a bit irritating but for this you can use the Automator application that comes with the Mac OSx operating system.

First you need to create a new document in Automator and choose Application as the type of document:

Automator - creating a new document

Click on the picture for a bigger version

Then choose as Action, Run shell Script.  After that you enter the open -n command as the script command, with the Xamarin Studio application as the application that you want to start. So this would be:

open -n “/Applications/Xamarin Studio.app”

Automator - opening multiple versions of Xamarin Studio

Click on the picture for a bigger version!

Save this document and afterwards double clicking on it will open another instance of Xamarin Studio!

Easy, once you know how to do this!


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