Choose specific folder in shell script

[hefler]

Hi all

I have several folders (I dont know their names) with a textfile inside. The number of folders can vary.. So now I want to read the textfile in the second least folder!
For example I have folder1, folder2, folder3 and folder4 and want to read the textfile with cat folder3/textfile.txt, which is the second least. But how can I do this if I dont know the names of the folders?

Thanks a lot for your help!
L.

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