By persisting I managed to enter the "bin" folder itself (with the "cd" command) because I thought it would be easier to launch the application once inside... then I tried several code phrases, the last one works:
"./uxnemu niju.rom"
Two last questions as a result:
1) ... there must be a more elegant sentence that would allow me to launch the application without "going down" in each folder...
2) Can I enlarge the application window, as it is particularly small to review...
I am particularly happy. Thank you for setting me on the right path.
