This file name apparently contains a hidden character somewhere: /config/wifi/mac.txt
I wrote a script to overwrite this file, but it creates another file with the same name.
I copied this file to a directory viewable in Windows (USB), and it lists as wifi.txt, but when I open it in Notepad, the filename is given as wifi.txt (and only 1 copy is open). It appears this is identifying where the hidden character is.
I need to write a script to overwrite this file, so I need to know what that hidden character is.
The Unix ls command options that might reveal what this character is are not available in the Android version of ls. (Yes, I could turn my Windows PC into a dual boot w/Linux, or set up a live CD to connect to the tablet, but I'm looking for an easier method.)
Android 5.1. Rooted Nextbook Ares 8" tablet.