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I have a lot of text files that I copied over from a NTFS volume which, when I open them in Ubuntu MATE 15.04 through the Caja file manager, open as executable and show the dialog box which asks me if I want to execute the file.

Is this a bug or normal behavior? This didn't used to happen in Thunar on Xubuntu.

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  • Hint: and those files have the executable persmissions set on Caja and did not on Thunar? ;-)
    – Rinzwind
    Apr 28, 2015 at 10:21
  • I don't have Xubuntu installed now so it's hard to know for certain.
    – warsong
    Apr 28, 2015 at 10:33

1 Answer 1

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It is normal behaviour. Well sort of. Be careful with regards to NTFS. Those partitions tend to be mounted as executable making all files ... executable.

This one-liner will remove execute from .txt from the directory you execute it: 

find . -type f -iname "*.txt" -exec chmod -x {} \;

When a text file has executable permissions set or is recognized as executable generally it will ask for it to be executed or to be viewed.

Nautilus also has a setting for this in "Edit" "preferences" "Behavior". Caja has the same option (though I have not found an image for Caja).

enter image description here

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  • What I'm unclear about is whether the permission is being set when I copy it over in Ubuntu MATE or whether it was already set like that. I copied the files over from a NTFS volume, I should have mentioned that.
    – warsong
    Apr 28, 2015 at 10:43
  • @warsong depending on how it was mounted, NTFS partitions can have everything marked as executable, so that might be the culprit.
    – muru
    Apr 28, 2015 at 10:46
  • @warsong you should have indeed. see the edit ;-)
    – Rinzwind
    Apr 28, 2015 at 11:19

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