Determine Default App for File Type from Command Line

By  on  

One quality of life improvement any developer can make for themselves is ensuring different file types open in the app they're most proficient in. If you know me, you know I prefer accomplishing as much as possible from the command line. The duti utility allows users to determine default file type from command line.

The duti utility allows developers to query which app is the default for different file types. You can install duti with brew:

brew install duti

Once you have duti available, you can check on the default app for file type with the following command:

~ duti -x md
Xcode.app
/Applications/Xcode.app
com.apple.dt.Xcode

You can set the default app by using its package:

duti -s com.sublimetext.2 .js all

The duti utility is really great for determining and automating default app management!

Recent Features

Incredible Demos

  • By
    MooTools Image Preloading with Progress Bar

    The idea of image preloading has been around since the dawn of the internet. When we didn't have all the fancy stuff we use now, we were forced to use ugly mouseover images to show dynamism. I don't think you were declared an official...

  • By
    MooTools Accordion: Mouseover Style

    Everyone loves the MooTools Accordion plugin but I get a lot of requests from readers asking me how to make each accordion item open when the user hovers over the item instead of making the user click. You have two options: hack the original plugin...

Discussion

    Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!