Hi Kornel,
I set PATH as you told me, see: bash_profileKor.png
and also tried as Jürgen told me, see: bash_profileJue.png
Both show exactly the same behavior:
- calling 'tlmgr gui' from a console as user the GUI pops up but with
the buttons disabled
"You have no permission to change the installation. Run as
administrator..."
and indeed, I could do nothing with the GUI, but
- calling 'tlmgr gui' from a console as administrator returns: 'bash:
tlmgr: command not found'
It seems to me as if the last tiny bit was still missing.
Could it have to do with the last line 'unset USERNAME' ?
Thank you both for your continuing patience!
Michael