Termux give user write access to usb pen

Question

I have a android box that has termux and I would like to add permission for my user to write to a plugged in usb pen drive.

For what I believe I only have to add that user to sdcard_r group, I'm not really sure if this is the way.
How can I achieve this? I can't find useradd command.



I also have tried using the termux-setup-storage command but this command doesn't seem to create a folder for my usb pen drive.



My android version is 5.1.1


— alexandre1985 | Sources

Answer

— alexandre1985 | Sources

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