Now my problem is, I have no idea how to use it /:
I think I have to copy it to a text editor and save it (no idea wich
extention) and then run it from a terminal. If someone has the time to
help me to use it I would be really greatful.
Hi,
Hope I can help with this one. You can save it with any extension, but
then you need to change the permissions of the file so that you can
execute it. I think you can do it with a graphical interface with a
right click, properties, and if I remember well, there should be a
permission tab.
Otherwise, in the terminal, type `chmod +x <path_to_file>`.
You might want to consider using pass, which is more secure and probably
is in the password manager. The ArchLinux wiki describes how to use it.
https://wiki.archlinux.org/index.php/Pass
Pass is under GPLV2+.
--
Khoi