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Thomas avatar Ubuntu

Set default appliation to open files

ng flag
Thomas

I have files with the extension .case that I want to open with the software paraview. I can open such a file either using the terminal (paraview file.case) or opening it directly from the software.

But when I double-click on the file in the terminal, it says that there is no application installed to open such a file, and in the menu Open with another application, Paraview doesn't appear in the list (while it appears in the list of application).

Is there a way to tell ubuntu that I want all case files to be open with /usr/bin/paraview ? I'm using ubuntu 20.04.

I found some posts dealing with this problem, but I didn't manage to solve mine with them...

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FedKad avatar
cn flag
FedKad
If there is no `.desktop` file for the `paraview` software, you can create one and put it under your `~/.local/share/applications/` directory. After that, you should be able to "associate" the `.case` extension with this "application" as you tried already.
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Score:1
avatar Ubuntu
gq flag
To Do

One possible problem why this is happening is because the .desktop file doesn't accept files.

  • Locate the paraview.desktop file (it could be in a number of locations. Start looking in /usr/share/applications/ or /var/lib/snapd/desktop/applications/)
  • Open it with a text editor. In the Exec line there should be a %U at the end.
  • If not, make a copy of the file in ~/local/share/applications/
  • Modify the file by adding the %U at the end of the Exec line like this: Exec=paraview %U line.
  • Make the file executable.
  • Log out and in again.
  • Try opening a .case file with the right-click Open with command.
  • If successful, right-click the file again, choose Properties followed by open with.
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Thomas avatar
ng flag
Thomas
I made what you said, but this doesn't work : I have the same behavior as earlier. I tried to add the `%U` or to give the full path to paraview (as explained on [this page](https://www.maketecheasier.com/create-desktop-file-linux/))
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gq flag
To Do
Are you sure you made the .desktop file executable?
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Thomas avatar
ng flag
Thomas
Yes : I tried `chmod u+x paraview.desktop` and also `chmod +x paraview.desktop`. When I try to open a `.case` file by double-clicking on it, the error message is « no application is installed for files " fichier IFF " [...]» (nb : as my system language is French, I translated for this post only what is outside the quotes in the message)
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gq flag
To Do
What happens if you run `paraview /path/to/.case file` in a terminal?
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Thomas avatar
ng flag
Thomas
it works well : paraview opens it
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gq flag
To Do
Did you leave a space before the `%U`? Also make sure you're launching the modified .desktop file and not the original one. To be sure you're launching the correct one, you could modify the `Name=` field slightly to distinguish between the two .desktop files.
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