Select random image from file list

[nmyshkin]

I adapted this from an earlier post I've now lost track of. It seems OK to me, but fails right at the second step, giving "0" for %num (should be "5" in my working case). I've inspected %files and it consists of a list of the files in the directory. What am I doing wrong?

Run Shell Command: ls /sdcard/.dicThumbs Store In: %files

Variable Set %num Value: %files(#)

Variable Randomize %rand Min: 1 Max: %num

Write File File: covers/1.png Text: %files(%rand)

[João Dias]

You can easily select a random item from an array like this: %files(*)

More info here: https://tasker.joaoapps.com/userguide/en/variables.html#arrays

Hope this helps!

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João Dias