How can I install Jaspersoft Studio Pro 5.5.0 on Linux with terminal only (.tgz file)
the .tgz file is simply an archive of the Linux version of Jaspersoft Studio.
You should unpack it using a command like: tar -xzvf <jaspersoftstudio_file>.tgz
Then go to the unpacked directory and simply run with: ./Jaspersoft\ Studio
However since it is Eclipse based, JSS needs to be run with an installation with a desktop environment.
Not sure to understand what you mean when you say "on Linux with terminal only".