Hello, I asked a colleague who has access. Turns out the command create a fatal error : "message authentication code incorrect". I suspected an encoding problem. So I forced the utf-8 encoding of the variable.

$gtk_cmd = Encode::encode('UTF-8', $gtk_cmd, Encode::FB_CROAK);

And it worked perfectly... Thank you for your answer, it led me to the solution. :)

In reply to Re^2: Tk Listbox and SSH command by Praetrorian
in thread Tk Listbox and SSH command by Praetrorian

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