2022-05-01 19:29:55 +00:00
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---
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title: "Default Programs"
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tags: [ "Documentation", "Defaults", "Mime Type" ]
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---
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Install the package `xdg-utils`.
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In general, type these commands with `bash-completion`, and you'll see the right option.
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## Ask
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Ask what type of application opens an mkv file:
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> xdg-mime query default video/mkv
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Same with pdf:
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> xdg-mime query default application/pdf
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2022-08-19 11:27:27 +00:00
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Ask what file-type `book.pdf` uses.
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> xdg-mime query filetype *book.pdf*
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2022-05-01 19:29:55 +00:00
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## Set
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Set the mime type of mp4 videos to mpv.
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> xdg-mime default mpv.desktop video/mp4
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2022-08-19 11:27:27 +00:00
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You'll need to use the tab key a lot here, and remember many items start with `org`.
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You can use an asterisk for everything in a category.
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> xdg-mime default org.gnome.font-viewer.desktop font/\*
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2022-05-01 19:29:55 +00:00
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2022-08-19 11:27:27 +00:00
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This often won't work as expected, because some fonts will have the type `application` rather than `font`.
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2022-05-01 19:29:55 +00:00
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