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Editorial Team
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Asked: 2026-05-12T09:10:42+00:00

So I want to associate a particular ‘protocol’ in my Opera browser with a

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So I want to associate a particular ‘protocol’ in my Opera browser with a shell script on OSX.

In Opera, I therefore did:

  1. <open preferences dialog>
  2. Advanced Tab -> Programs
  3. Added ‘myProtocol’ and set it to open with other application ‘~/bin/myScript.sh’
  4. Applied settings etc.

Now, when I go to myProtocol://some.url.or.other, opera is calling my script. However, $* shows that the only argument passed to the script is the OSX PSN.

i.e. in the script the line

echo $0 called with $*

outputs

/Users/me/bin/myScript.sh called with -psn_0_4588640

Why is it calling it with the PSN as the cmd line? Why not the URL? On ubuntu Opera passes the URL, what’s with OSX?

Can I get it to call it with the URL? Is it going to be available as a environment variable instead?

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1 Answer

  1. Editorial Team

    Opera seems to use the Apple command open to open the file passed in

    This launches the application yhen sends it an Apple Event using Launch Services
    http://developer.apple.com/documentation/Carbon/Conceptual/LaunchServicesConcepts/LSCConcepts/LSCConcepts.html

    So to open a file the app will be started and then has to respond to an apple event

    Your application will have to be a full OSX application not just a script

    The -psn on the command line is apssed in from the Workspace

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