Defautl to open *.m files in MATLAB, linux
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MATLAB R2020a, Ubuntu 20.04
I am trying to set MATLAB to open m files by default. MATLAB doesn't appear in the "Open with other Application" dialog.
This has been a problem in the past, but the solution doesn't work on modern Ubuntu.
I tried editing my defaults.list file by adding the line "text/m=matlab.desktop". This did not help.
Thanks for your answer.
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Accepted Answer
Lukas Pospichal
on 16 Jul 2020
Edited: Lukas Pospichal
on 16 Jul 2020
I had the same issue. I just now fixed it. In ubuntu 18.04. which I had previously I just installed the matlab application from the Ubuntu Software app. But in ubuntu 20.04 you need to use the Software app
And there install the package:
This will create the matlab.desktop file and from there you can just follow the instructions you linked (adding -r "edit %f" after the launch command). Hope this helps.
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Paul Wright
on 6 Apr 2021
Two notes:
- The quotes are really important. Without them, MATLAB just opens an empty editor because the filename is parsed as a separate argument to MATLAB, rather than part of the command for MATLAB to run.
- Changing the .desktop file in this way makes MATLAB open with an empty editor window if you're just launching MATLAB directly from its icon. There must be a way to make the -r "edit %f" part conditional. I'm creating a separate question about that.
Paul Wright
on 6 Apr 2021
Uh-oh:
"Field codes must not be used inside a quoted argument, the result of field code expansion inside a quoted argument is undefined."
https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html#exec-variables
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